Which Interstate goes through the most area codes??

[OCGuy81]

I'm thinking it would be I-95 given the population density in the east, BUT, you do have transcontinental routes like I-90 and I-10 that might hit just as many...

[hotdogPi]

95:
60 (207, 603, 978/351, 617/857, 781/339, 508/774, 401, 860/959, 203/475, 914, 212/332/646/917, 201/551, 973/862, 908, 732/848, 215/267/445, 610/484, 302, 410/443/667, 301/240, 202, 703/571, 540, 804, 434, 252, 919/984, 910, 843/854, 912, 904, 386, 407, 772, 561, 954/754, 305/786)

90:
39 (206, 425, 509, 208/986, 406, 307, 605, 507, 608, 815/779, 847/224, 773/872, 312, 219, 574, 260, 419/567, 440, 216, 814, 716, 585, 315/680 (why did they waste a low number), 518/838, 413 (another low number wasted), 508/774, 781/339, 617/857)

10: 39 (310/424, 213/323, 626, 909, 951, 760/442, 928, 623, 602, 480, 520, 575, 915, 432, 325, 830, 210/726, 361, 979, 731, 281/346/832, 409, 337, 225, 985, 504, 601/779, 228 (really, you had to make it that small?), 251, 850, 386, 904)

Side note: do all six of New Jersey's area codes (ignoring overlays) go blue?

[SkyPesos]

Since 90 and 95 have been done, I'll do the closest x0 and x5 to me: 70 and 75

I-70
UT: 435
CO: 970, 303/720, 719
KS: 785, 913
MO: 816, 660, 573, 636, 314
IL: 618, 217/447
IN: 812/930, 765, 317
OH: 326/937, 380/614, 220/740
WV: 304/681
PA: 724, 814, 717
MD: 240/301, 410/443/667
Total: 35

I-75
FL: 305/786, 239, 941, 813, 352, 386
GA: 229, 478, 678/770, 404, 706
TN: 423, 865
KY: 606, 859, 502
OH: 513, 326/937, 419/567
MI: 734, 313, 248/947, 810, 989, 231, 906
Total: 31

[TheHighwayMan3561]

I-35 (24)
MN: 218, 320, 651, 763, 612, 952, 507
IA: 641, 515
MO: 660, 816
KS: 913, 785, 316, 620
OK: 580, 405/572
TX: 940, 682/817, 214/469/972, 254, 512, 210, 830

[Big John]

95:
60 (207, 603, 978/351, 617/857, 781/339, 508/774, 401, 860/959, 203/475, 914, 212/332/646/917, 201/551, 973/862, 908, 732/848, 215/267/445, 610/484, 302, 410/443/667, 301/240, 202, 703/571, 540, 804, 434, 252, 919/984, 910, 843/854, 912, 904, 386, 407, 772, 561, 954/754, 305/786)

90:
39 (206, 425, 509, 208/986, 406, 307, 605, 507, 608, 815/779, 847/224, 773/872, 312, 219, 574, 260, 419/567, 440, 216, 814, 716, 585, 315/680 (why did they waste a low number), 518/838, 413 (another low number wasted), 508/774, 781/339, 617/857)

10: 39 (310/424, 213/323, 626, 909, 951, 760/442, 928, 623, 602, 480, 520, 575, 915, 432, 325, 830, 210/726, 361, 979, 731, 281/346/832, 409, 337, 225, 985, 504, 601/779, 228 (really, you had to make it that small?), 251, 850, 386, 904)

Side note: do all six of New Jersey's area codes (ignoring overlays) go blue?

The "wasted" area codes are either the original numbers from x01 to x19. or picked to not get too close to another similar number.

[SkyPesos]

Just read a bit of the original area codes system. So the area code numbers were based on how many dials you do on a rotary phone, which is the digits of an area code added up, with 10 for 0. For example, for 212, 2+1+2=5, which is the smallest, and for the largest city. And the x0x area codes were for full states, like how all of Washington state was 206.

With the 1950 census metro area population (the area codes were established in 1947, so I rounded up to 1950), this is ideally how they would be laid out up to 11 dials, excluding cities that were part of a full state area code (x0x):
212 (5 dials): NYC
213, 312 (6 dials): Chicago, Los Angeles
214, 313, 412 (7 dials): Philadelphia, Detroit, Boston
215, 314, 413, 512 (8 dials): San Francisco, Pittsburgh, St Louis, Cleveland
216, 315, 414, 513, 612 (9 dials): Minneapolis, Buffalo, Cincinnati, Milwaukee, Kansas City
217, 316, 415, 514, 613, 712 (10 dials): Houston, Dallas, Indianapolis, San Diego, Youngstown, Albany
218, 317, 416, 515, 614, 713, 812 (11 dials): Columbus, San Antonio, Rochester (NY), Allentown, Springfield (MA), Toledo, Ft Worth

[OCGuy81]

I'll do I-5 since it's nearest me.

WA: 360, 425, 206, 253
OR: 503/971, 541/458
CA: 530, 916/279, 209, 559, 661, 626, 213/323, 714/657, 949, 760, 858, 619

23

[Big John]

And the x0x area codes were for full states, like how all of Washington state was 206.

Wisconsin had three original area codes, one of which is 608.  And the upper peninsula of Michigan is 906.

[OCGuy81]

Just read a bit of the original area codes system. So the area code numbers were based on how many dials you do on a rotary phone, which is the digits of an area code added up, with 10 for 0. For example, for 212, 2+1+2=5, which is the smallest, and for the largest city. And the x0x area codes were for full states, like how all of Washington state was 206.

With the 1950 census metro area population (the area codes were established in 1947, so I rounded up to 1950), this is ideally how they would be laid out up to 11 dials, excluding cities that were part of a full state area code (x0x):
212 (5 dials): NYC
213, 312 (6 dials): Chicago, Los Angeles
214, 313, 412 (7 dials): Philadelphia, Detroit, Boston
215, 314, 413, 512 (8 dials): San Francisco, Pittsburgh, St Louis, Cleveland
216, 315, 414, 513, 612 (9 dials): Minneapolis, Buffalo, Cincinnati, Milwaukee, Kansas City
217, 316, 415, 514, 613, 712 (10 dials): Houston, Dallas, Indianapolis, San Diego, Youngstown, Albany
218, 317, 416, 515, 614, 713, 812 (11 dials): Columbus, San Antonio, Rochester (NY), Allentown, Springfield (MA), Toledo, Ft Worth

That's really interesting!

I think 360 in Washington was the first not to have a 1 or 0 in the middle.  Interestingly enough, it's the only one that is broken into two segments. Most of southwestern Washington and then north of Seattle

[OCGuy81]

It's kind of funny how area codes really aren't necessary anymore with mobile technology.

My wife and I still have our 949 numbers. No need to change them.

[Big John]

That's really interesting!

I think 360 in Washington was the first not to have a 1 or 0 in the middle.  Interestingly enough, it's the only one that is broken into two segments. Most of southwestern Washington and then north of Seattle

And Illinois was up there with 630.

[SkyPesos]

Just read a bit of the original area codes system. So the area code numbers were based on how many dials you do on a rotary phone, which is the digits of an area code added up, with 10 for 0. For example, for 212, 2+1+2=5, which is the smallest, and for the largest city. And the x0x area codes were for full states, like how all of Washington state was 206.

With the 1950 census metro area population (the area codes were established in 1947, so I rounded up to 1950), this is ideally how they would be laid out up to 11 dials, excluding cities that were part of a full state area code (x0x):
212 (5 dials): NYC
213, 312 (6 dials): Chicago, Los Angeles
214, 313, 412 (7 dials): Philadelphia, Detroit, Boston
215, 314, 413, 512 (8 dials): San Francisco, Pittsburgh, St Louis, Cleveland
216, 315, 414, 513, 612 (9 dials): Minneapolis, Buffalo, Cincinnati, Milwaukee, Kansas City
217, 316, 415, 514, 613, 712 (10 dials): Houston, Dallas, Indianapolis, San Diego, Youngstown, Albany
218, 317, 416, 515, 614, 713, 812 (11 dials): Columbus, San Antonio, Rochester (NY), Allentown, Springfield (MA), Toledo, Ft Worth

That’s really interesting!

I think 360 in Washington was the first not to have a 1 or 0 in the middle.  Interestingly enough, it’s the only one that is broken into two segments. Most of southwestern Washington and then north of Seattle

First of all, I forgot that Canada also uses the same area code system as the US when doing my metro areas list above 
I found a map of the original 1947 area codes plan. Note that there were things called "flash-cuts" right after this map, which were new area codes that were added pretty early on. Like with Washington, 509 was added in 1957 as a flash cut from 206.

Note that 614 and 513 are flipped on that map for some reason, 513 is supposed to be in Southwest OH.

[jp the roadgeek]

95:
60 (207, 603, 978/351, 617/857, 781/339, 508/774, 401, 860/959, 203/475, 914, 212/332/646/917, 201/551, 973/862, 908, 732/848, 215/267/445, 610/484, 302, 410/443/667, 301/240, 202, 703/571, 540, 804, 434, 252, 919/984, 910, 843/854, 912, 904, 386, 407, 772, 561, 954/754, 305/786)

Even with the re-route, it still passes through a piece of 609/840.

The eastern I-84 is interesting.  Passes through 9 area codes eastbound (570/272, 845, 203/475, 860/959, and 508/774), but 10 westbound, as the westbound lanes clip the town of Holland, MA, which is part of Hampden County and the 413 just before crossing into CT.  Meanwhile the eastbound lanes pass directly into Sturbridge, which is in Worcester County and the 508/774

I-91 passes through twice as many area codes in CT (4) than the rest of its route (413 in MA and 802 in VT).  One of its children, I-691, crosses the 203/860 divide twice, and its ending split at I-84 takes you into 860 if you exit eastbound but remains in 203 if you're going westbound. 

[TheHighwayMan3561]

It's kind of funny how area codes really aren't necessary anymore with mobile technology.

My wife and I still have our 949 numbers. No need to change them.

We were issued 612 area codes despite not acquiring our phones in that area code, or even anywhere near it really.

[Big John]

Just read a bit of the original area codes system. So the area code numbers were based on how many dials you do on a rotary phone, which is the digits of an area code added up, with 10 for 0. For example, for 212, 2+1+2=5, which is the smallest, and for the largest city. And the x0x area codes were for full states, like how all of Washington state was 206.

With the 1950 census metro area population (the area codes were established in 1947, so I rounded up to 1950), this is ideally how they would be laid out up to 11 dials, excluding cities that were part of a full state area code (x0x):
212 (5 dials): NYC
213, 312 (6 dials): Chicago, Los Angeles
214, 313, 412 (7 dials): Philadelphia, Detroit, Boston
215, 314, 413, 512 (8 dials): San Francisco, Pittsburgh, St Louis, Cleveland
216, 315, 414, 513, 612 (9 dials): Minneapolis, Buffalo, Cincinnati, Milwaukee, Kansas City
217, 316, 415, 514, 613, 712 (10 dials): Houston, Dallas, Indianapolis, San Diego, Youngstown, Albany
218, 317, 416, 515, 614, 713, 812 (11 dials): Columbus, San Antonio, Rochester (NY), Allentown, Springfield (MA), Toledo, Ft Worth

That's really interesting!

I think 360 in Washington was the first not to have a 1 or 0 in the middle.  Interestingly enough, it's the only one that is broken into two segments. Most of southwestern Washington and then north of Seattle

First of all, I forgot that Canada also uses the same area code system as the US when doing my metro areas list above 
I found a map of the original 1947 area codes plan. Note that there were things called "flash-cuts" right after this map, which were new area codes that were added pretty early on. Like with Washington, 509 was added in 1957 as a flash cut from 206.

Note that 614 and 513 are flipped on that map for some reason, 513 is supposed to be in Southwest OH.

Idid not know the first area were before the flash cuts.  Sorry.

[jeffandnicole]

Just read a bit of the original area codes system. So the area code numbers were based on how many dials you do on a rotary phone, which is the digits of an area code added up, with 10 for 0. For example, for 212, 2+1+2=5, which is the smallest, and for the largest city. And the x0x area codes were for full states, like how all of Washington state was 206.

With the 1950 census metro area population (the area codes were established in 1947, so I rounded up to 1950), this is ideally how they would be laid out up to 11 dials, excluding cities that were part of a full state area code (x0x):
212 (5 dials): NYC
213, 312 (6 dials): Chicago, Los Angeles
214, 313, 412 (7 dials): Philadelphia, Detroit, Boston
215, 314, 413, 512 (8 dials): San Francisco, Pittsburgh, St Louis, Cleveland
216, 315, 414, 513, 612 (9 dials): Minneapolis, Buffalo, Cincinnati, Milwaukee, Kansas City
217, 316, 415, 514, 613, 712 (10 dials): Houston, Dallas, Indianapolis, San Diego, Youngstown, Albany
218, 317, 416, 515, 614, 713, 812 (11 dials): Columbus, San Antonio, Rochester (NY), Allentown, Springfield (MA), Toledo, Ft Worth

Philadelphia is 215.

[CtrlAltDel]

Just read a bit of the original area codes system. So the area code numbers were based on how many dials you do on a rotary phone, which is the digits of an area code added up, with 10 for 0. For example, for 212, 2+1+2=5, which is the smallest, and for the largest city. And the x0x area codes were for full states, like how all of Washington state was 206.

With the 1950 census metro area population (the area codes were established in 1947, so I rounded up to 1950), this is ideally how they would be laid out up to 11 dials, excluding cities that were part of a full state area code (x0x):
212 (5 dials): NYC
213, 312 (6 dials): Chicago, Los Angeles
214, 313, 412 (7 dials): Philadelphia, Detroit, Boston
215, 314, 413, 512 (8 dials): San Francisco, Pittsburgh, St Louis, Cleveland
216, 315, 414, 513, 612 (9 dials): Minneapolis, Buffalo, Cincinnati, Milwaukee, Kansas City
217, 316, 415, 514, 613, 712 (10 dials): Houston, Dallas, Indianapolis, San Diego, Youngstown, Albany
218, 317, 416, 515, 614, 713, 812 (11 dials): Columbus, San Antonio, Rochester (NY), Allentown, Springfield (MA), Toledo, Ft Worth

For reference, here are the actual codes:

Code Select Expand


Count Code Location
5 212 New York (New York City)
6 213 California (Southern California, including Los Angeles)
6 312 Illinois (Chicago metropolitan area)
7 214 Texas (northeastern Texas, including Dallas/Fort Worth)
7 313 Michigan (southeast Michigan, including Detroit)
7 412 Pennsylvania (western Pennsylvania, including Pittsburgh)
8 215 Pennsylvania (southeastern Pennsylvania, including Philadelphia)
8 314 Missouri (eastern Missouri, including St. Louis)
8 413 Massachusetts (western Massachusetts, including Springfield)
8 512 Texas (central and southern Texas, including Austin and San Antonio)
9 216 Ohio (northeastern Ohio, including Cleveland)
9 315 New York (central upstate New York, including Syracuse)
9 414 Wisconsin (southern and northeastern Wisconsin, including Milwaukee)
9 513 Ohio (southwest Ohio, including Cincinnati)
9 612 Minnesota (southeastern portion, including Minneapolis)
10 217 Illinois (central)
10 316 Kansas (southern half of Kansas)
10 415 California (northern/central California, including San Francisco and Sacramento)
10 514 Quebec (western half of Quebec, including Montreal)
10 613 Ontario (all except a southern portion covering Oshawa-Toronto-Kitchener)
10 712 Iowa (western third, including Sioux City)
11 218 Minnesota (except southeastern part of state)
11 317 Indiana (northern two-thirds of Indiana, including Indianapolis)
11 416 Ontario (southern portion from Cobourg to Kitchener, including Toronto)
11 515 Iowa (central Iowa, including Des Moines)
11 614 Ohio (southeast, including Columbus)
11 713 Texas (southeastern Texas, including Houston)
11 812 Indiana (southern Indiana)
13 201 New Jersey
13 319 Iowa (eastern third of Iowa)
13 418 Quebec (eastern half of Quebec, including Québec City)
13 517 Michigan (south-central portion of Lower Peninsula, including Lansing)
13 616 Michigan (Grand Rapids, Upper Peninsula, western portion of Lower Peninsula)
13 715 Wisconsin (northern Wisconsin)
13 814 Pennsylvania (northwestern and central Pennsylvania)
13 913 Kansas (northern half of Kansas)
14 202 District of Columbia
14 301 Maryland
14 419 Ohio (northwest Ohio, including Toledo)
14 518 New York (northeastern New York, including Albany)
14 617 Massachusetts (eastern Massachusetts, including Boston)
14 716 New York (western New York, including Buffalo and Rochester)
14 815 Illinois (northern Illinois, except Chicago and Quad Cities)
14 914 New York (southern New York, including Long Island, but excluding New York City)
15 203 Connecticut
15 302 Delaware
15 401 Rhode Island
15 618 Illinois (southern Illinois, including East St. Louis and Carbondale)
15 717 Pennsylvania (eastern half, except for the Delaware and Lehigh Valleys)
15 816 Missouri (northwestern Missouri, including Kansas City)
15 915 Texas (western Texas, including El Paso)
16 204 Manitoba
16 303 Colorado
16 402 Nebraska
16 501 Arkansas
16 916 California (northern California, but not including Sacramento)
17 205 Alabama
17 304 West Virginia
17 403 Alberta
17 502 Kentucky
17 601 Mississippi
18 206 Washington
18 305 Florida
18 404 Georgia
18 503 Oregon
18 602 Arizona
18 701 North Dakota
19 207 Maine
19 306 Saskatchewan
19 405 Oklahoma
19 504 Louisiana
19 603 New Hampshire
19 702 Nevada
19 801 Utah
20 208 Idaho
20 307 Wyoming
20 406 Montana
20 505 New Mexico
20 604 British Columbia
20 703 Virginia
20 802 Vermont
20 901 Tennessee
21 605 South Dakota
21 704 North Carolina
21 803 South Carolina
21 902 Nova Scotia, Prince Edward Island, New Brunswick


[jp the roadgeek]

Just read a bit of the original area codes system. So the area code numbers were based on how many dials you do on a rotary phone, which is the digits of an area code added up, with 10 for 0. For example, for 212, 2+1+2=5, which is the smallest, and for the largest city. And the x0x area codes were for full states, like how all of Washington state was 206.

With the 1950 census metro area population (the area codes were established in 1947, so I rounded up to 1950), this is ideally how they would be laid out up to 11 dials, excluding cities that were part of a full state area code (x0x):
212 (5 dials): NYC
213, 312 (6 dials): Chicago, Los Angeles
214, 313, 412 (7 dials): Philadelphia, Detroit, Boston
215, 314, 413, 512 (8 dials): San Francisco, Pittsburgh, St Louis, Cleveland
216, 315, 414, 513, 612 (9 dials): Minneapolis, Buffalo, Cincinnati, Milwaukee, Kansas City
217, 316, 415, 514, 613, 712 (10 dials): Houston, Dallas, Indianapolis, San Diego, Youngstown, Albany
218, 317, 416, 515, 614, 713, 812 (11 dials): Columbus, San Antonio, Rochester (NY), Allentown, Springfield (MA), Toledo, Ft Worth

For reference, here are the actual codes:

Code Select Expand


Count Code Location
5 212 New York (New York City)
6 213 California (Southern California, including Los Angeles)
6 312 Illinois (Chicago metropolitan area)
7 214 Texas (northeastern Texas, including Dallas/Fort Worth)
7 313 Michigan (southeast Michigan, including Detroit)
7 412 Pennsylvania (western Pennsylvania, including Pittsburgh)
8 215 Pennsylvania (southeastern Pennsylvania, including Philadelphia)
8 314 Missouri (eastern Missouri, including St. Louis)
8 413 Massachusetts (western Massachusetts, including Springfield)
8 512 Texas (central and southern Texas, including Austin and San Antonio)
9 216 Ohio (northeastern Ohio, including Cleveland)
9 315 New York (central upstate New York, including Syracuse)
9 414 Wisconsin (southern and northeastern Wisconsin, including Milwaukee)
9 513 Ohio (southwest Ohio, including Cincinnati)
9 612 Minnesota (southeastern portion, including Minneapolis)
10 217 Illinois (central)
10 316 Kansas (southern half of Kansas)
10 415 California (northern/central California, including San Francisco and Sacramento)
10 514 Quebec (western half of Quebec, including Montreal)
10 613 Ontario (all except a southern portion covering Oshawa-Toronto-Kitchener)
10 712 Iowa (western third, including Sioux City)
11 218 Minnesota (except southeastern part of state)
11 317 Indiana (northern two-thirds of Indiana, including Indianapolis)
11 416 Ontario (southern portion from Cobourg to Kitchener, including Toronto)
11 515 Iowa (central Iowa, including Des Moines)
11 614 Ohio (southeast, including Columbus)
11 713 Texas (southeastern Texas, including Houston)
11 812 Indiana (southern Indiana)
13 201 New Jersey
13 319 Iowa (eastern third of Iowa)
13 418 Quebec (eastern half of Quebec, including Québec City)
13 517 Michigan (south-central portion of Lower Peninsula, including Lansing)
13 616 Michigan (Grand Rapids, Upper Peninsula, western portion of Lower Peninsula)
13 715 Wisconsin (northern Wisconsin)
13 814 Pennsylvania (northwestern and central Pennsylvania)
13 913 Kansas (northern half of Kansas)
14 202 District of Columbia
14 301 Maryland
14 419 Ohio (northwest Ohio, including Toledo)
14 518 New York (northeastern New York, including Albany)
14 617 Massachusetts (eastern Massachusetts, including Boston)
14 716 New York (western New York, including Buffalo and Rochester)
14 815 Illinois (northern Illinois, except Chicago and Quad Cities)
14 914 New York (southern New York, including Long Island, but excluding New York City)
15 203 Connecticut
15 302 Delaware
15 401 Rhode Island
15 618 Illinois (southern Illinois, including East St. Louis and Carbondale)
15 717 Pennsylvania (eastern half, except for the Delaware and Lehigh Valleys)
15 816 Missouri (northwestern Missouri, including Kansas City)
15 915 Texas (western Texas, including El Paso)
16 204 Manitoba
16 303 Colorado
16 402 Nebraska
16 501 Arkansas
16 916 California (northern California, but not including Sacramento)
17 205 Alabama
17 304 West Virginia
17 403 Alberta
17 502 Kentucky
17 601 Mississippi
18 206 Washington
18 305 Florida
18 404 Georgia
18 503 Oregon
18 602 Arizona
18 701 North Dakota
19 207 Maine
19 306 Saskatchewan
19 405 Oklahoma
19 504 Louisiana
19 603 New Hampshire
19 702 Nevada
19 801 Utah
20 208 Idaho
20 307 Wyoming
20 406 Montana
20 505 New Mexico
20 604 British Columbia
20 703 Virginia
20 802 Vermont
20 901 Tennessee
21 605 South Dakota
21 704 North Carolina
21 803 South Carolina
21 902 Nova Scotia, Prince Edward Island, New Brunswick


Interesting that 516 and 718 were not part of the original numbering plan.  Noticed a couple of errors: Rochester was 716 along with Buffalo, and Massachusetts had 1 area code until 413 (which covers Springfield) was added later.

[zachary_amaryllis]

then there's prefixes..

when i used to run a fido bbs back in the 90's (anyone remember those?) i was in charge of maintaining a list of what prefixes were local to the area. it used to be fairly easy, since they were published in the phone books.
plus, with some clever modem tricks and call-forwarding, one could call long distance for the local price.. i.e. fort collins was local to berthoud, and berthoud was local to fort collins and longmont. but longmont was long distance from fort collins.
anyways.. nowadays, the phone book still lists the traditional prefixes for this area, but states that 'other phone companies might have other ones that are also local'. of course, the bbs is long dead (long live DFTS!) but a lot of times its not clear when i have to dial '1' on my landline (does anyone still have those?)

[kphoger]

It's kind of funny how area codes really aren't necessary anymore with mobile technology.

Are you under the impression that landline phones no longer exist?

[OCGuy81]

It's kind of funny how area codes really aren't necessary anymore with mobile technology.

Are you under the impression that landline phones no longer exist?

Land....lines?! That's a good point.

We had one when we first moved up here but nobody ever called us on it.

[kphoger]

It's kind of funny how area codes really aren't necessary anymore with mobile technology.

Are you under the impression that landline phones no longer exist?

Land....lines?! That's a good point.

We had one when we first moved up here but nobody ever called us on it.

They're.... umm.... kind of a big deal, especially for nearly every business you see.  Multiple landline numbers, all over the place.  (Meanwhile, I work for a company that installs landline phone service, yet we use VOIP phones in the office.)  They're also kind of a big deal for elderly people whose Life Line medical alert system is tied into the phone wiring.

And area codes are still very necessary for landline numbers.  You can't even port your landline phone number across a rate center line, even if that's just across the street.  Northwest Arkansas, for example, has multiple rate centers, so a business can't relocate from Rogers to Fayetteville and keep the same number, even though they're in the same area code–much less if they relocated to Oklahoma City!

[GaryV]

Huh.  I never realized 906 in the UP was split off from 616.  5 years after Alaska was assigned 907 - I wonder why they kept 906 for the UP?  Those two would have the most dial pulses - 25 and 26 respectively.

Now we also have 908 and 909 which were recent additions, when dial pulses no longer make a difference.  And others that have a 0 on the end which could also have a large dial pulse count, if that was still in use.

[zachary_amaryllis]

It's kind of funny how area codes really aren't necessary anymore with mobile technology.

Are you under the impression that landline phones no longer exist?

Land....lines?! That's a good point.

We had one when we first moved up here but nobody ever called us on it.

mobiles rarely work where i live

[CtrlAltDel]

Interesting that 516 and 718 were not part of the original numbering plan.  Noticed a couple of errors: Rochester was 716 along with Buffalo, and Massachusetts had 1 area code until 413 (which covers Springfield) was added later.

I admittedly just copied and pasted from the Wiki. From what I can tell, though, 716 is listed in the chart as including Rochester, which as far as I can tell is correct. Also, although 413 was not in the original plan of area codes, it was implemented, as far as I can tell, at the same time as the others. That said, I may not be understanding all the nuances involved.