de@uu.psi.com (Dave Esan) (02/17/91)
Once a quarter I receive the BellCore V&H tape. Using this
information I can total the number of exchanges in each area code.
The twenty most populous area codes are listed below. After the
written text of this article I have included the count for each of the
area codes.
I have not included the 52? series of area codes that are in use for
Mexico, since they are not yet dialable from the US. (Note: Don't ask
me when they will be dialable, I don't know although I will guess
sometime after 1995.)
I have not included the 82? series of area codes which include many
more Mexico exchanges, as well as the non-diable locations in the
NANP.
213: 729 212: 663 919: 620 714: 573
214: 718 415: 642 205: 615 206: 570
201: 694 512: 634 215: 597 501: 564
301: 690 416: 628 403: 591 604: 553
404: 667 313: 626 602: 589 703: 546
Of the top 20 NPA's we can note: (I have no details on calling
patterns in those NPA's not noted, and have no information of
impending splits in those NPA's).
#1 213 - due to split to 310 beginning February 1, 1992.
#2 214 - has split to 903. Permissive dialling will end 11/91, and number
will be reduced.
#3 201 - has split to 908. Permissive dialling will end this year,
and number will be reduced.
#4 301 - due to split to 410 beginning November, 1991.
#5 404 - no plans to split at this point. I have no data on ten
digit dialling for non-local calls.
#6 212 - due to split to 917 sometime in 1992.
#7 415 - due to split to 510 beginning October 7, 1991.
#8 512 - no plans to split at this point. I have no data on ten
digit dialling for non-local calls.
#9 416 - no plans to split at this point. Ten digit dialling in
affect for non-local calls.
#10 313 - no plans to split at this point. Ten digit dialling in
affect for non-local calls.
#16 714 - will split to 909 beginning November 1992.
Has anyone in Atlanta heard about an impending split? I thought
Atlanta was a major growth area, and as #5 on the NPA chart (and
rising rapidly as 201 and 214 get reduced with the end of permissive
dialling) some thought must have been given.
The other area codes are given below.
201: 694 304: 323 406: 338 508: 366 612: 513 714: 573 816: 444
202: 251 305: 456 407: 379 509: 234 613: 280 715: 309 817: 477
203: 477 306: 444 408: 295 512: 634 614: 398 716: 371 818: 353
204: 344 307: 149 409: 281 513: 446 615: 524 717: 466 819: 306
205: 615 308: 192 412: 414 514: 476 616: 369 718: 396 901: 219
206: 570 309: 257 413: 130 515: 403 617: 369 719: 155 902: 261
207: 332 312: 415 414: 458 516: 361 618: 324 801: 322 903: 263
208: 276 313: 626 415: 642 517: 312 619: 487 802: 175 904: 487
209: 330 314: 520 416: 628 518: 249 701: 350 803: 496 905: 306
212: 663 315: 254 417: 195 519: 342 702: 288 804: 459 906: 109
213: 729 316: 353 418: 358 601: 390 703: 546 805: 274 907: 405
214: 718 317: 413 419: 329 602: 589 704: 332 806: 255 908: 307
215: 597 318: 329 501: 564 603: 229 705: 265 807: 105 912: 318
216: 540 319: 323 502: 335 604: 553 706: 176 808: 250 913: 433
217: 354 401: 131 503: 518 605: 341 707: 176 809: 490 914: 328
218: 285 402: 403 504: 322 606: 263 708: 518 812: 273 915: 293
219: 343 403: 591 505: 307 607: 163 709: 256 813: 484 916: 405
301: 690 404: 667 506: 174 608: 242 712: 270 814: 256 918: 305
302: 108 405: 536 507: 258 609: 263 713: 536 815: 287 919: 620
303: 505 -------- -------- -------- -------- -------- --------
David Esan de@moscom.comcmoore@brl.mil (VLD/VMB) (02/19/91)
What is this 82x series of "area codes"? I already knew about 52x. You have some cases where you say "ten digit dialing"; this should be eleven digits (1 + area code + number), as there are some places where ten digit dialing (leading 1 NOT required) is in effect for local calls crossing an area code border. For example, in the Washington DC area, you dial 7D for local calls within your NPA, NPA+7D for local calls to another NPA, and 1+NPA+7D elsewhere (even to distant parts of 301 and 703). 404 and 512 have 1+NPA+7D for toll calls, including intra-NPA. A split has been announced for 416, but the new area code has not been announced. 919, 205, 602, 206, 703 have 1+NPA+7D, announced if not yet in effect, for all non-local calls. In the case of 703, which wasn't PARTICULARLY crowded, this was because of the N0X/N1X prefixes in the DC area. 215 is in the process of dropping the 1+ for long distance within it.
goudreau@dg-rtp.dg.com (Bob Goudreau) (02/20/91)
In article <telecom11.121.1@eecs.nwu.edu>, tropix!moscom!de@uu.psi.com (Dave Esan) writes: > I have not included the 52? series of area codes that are in use for > Mexico, since they are not yet dialable from the US. ... > I have not included the 82? series of area codes which include many > more Mexico exchanges, as well as the non-diable locations in the > NANP. Could you please elaborate on the 82X series of area codes? I had thought that the 52X codes were going to be offered as a short-cut way to dial Mexico; every Mexican number could be dialed as either 011-52-XXXXXXXX, or as 1-52X-XXX-XXXX. (Though I'm not sure why they're even bothering to provide a short-cut that saves us a mere two digits.) Why then is there a need for 82X area codes? Also, what do you mean by "non-dialable locations in the NANP"? Bob Goudreau +1 919 248 6231 Data General Corporation goudreau@dg-rtp.dg.com 62 Alexander Drive ...!mcnc!rti!xyzzy!goudreau Research Triangle Park, NC 27709, USA
djcl@contact.uucp (woody) (02/20/91)
In article <telecom11.121.1@eecs.nwu.edu> tropix!moscom!de@uu.psi.com (Dave Esan) writes: > I have not included the 52? series of area codes that are in use for > Mexico, since they are not yet dialable from the US. (Note: Don't ask > me when they will be dialable, I don't know although I will guess > sometime after 1995.) Is the plan indeed to have the 52X area codes to link into Mexico? Or is this something of a hack on the tape to allow for call costings into Mexico exchanges? Given that Mexico's system is separate from the NANP, and given the population growth, is it not likely that Mexico City, or perhaps other places, could have situations which require yet a new digit (say, eight digit Mexico City local numbers, like France and Tokyo were expanded). That could wreck the idea of having 52X area codes soon after they get started if that were the case. > I have not included the 82? series of area codes which include many > more Mexico exchanges, as well as the non-diable locations in the > NANP. Do you have any details on what these 82X area codes would represent? > #9 416 - no plans to split at this point. Ten digit dialling in > affect for non-local calls. There are announced plans to split with permissive dialing 4 Oct 93, and mandatory dial likely Jan 94. No official announcement of what the split code will be; 210 is a good bet, though.
ndallen@eecs.nwu.edu (Nigel Allen) (02/21/91)
In Volume 11, Issue 133, Message 9, goudreau@dg-rtp.dg.com (Bob
Goudreau) asks:
> Also, what do you mean by "non-dialable locations in the NANP"?
NANP = North American Numbering Plan, the formal name for the
allocation of area codes. The acronym NPA is a synonym for area code
(or sometimes the area itself).
Some remote locations in northern Ontario, northern Quebec and the
Northwest Territories have dial telephone service, but long-distance
calls to those points are (or were) handled by the operator.
They have telephone numbers in the usual format, though. de@uu.psi.com (Dave Esan) (02/22/91)
In article <telecom11.133.9@eecs.nwu.edu> goudreau@dg-rtp.dg.com (Bob Goudreau) writes: X-Telecom-Digest: Volume 11, Issue 133, Message 9 of 11 > In article <telecom11.121.1@eecs.nwu.edu>, tropix!moscom!de@uu.psi.com > (David Esan) writes: >> I have not included the 82? series of area codes which include many >> more Mexico exchanges, as well as the non-diable locations in the >> NANP. > Could you please elaborate on the 82X series of area codes? Well, the V&H Tape includes area codes that begin with 88. There are 2500+ such sites, so I will not include them here, nor will I burden the system by mailing them to anyone. From what I gather from reading them, they are non-dialable locations in the US, Canada, Mexico and the Caribbean. For example, the Mexican sites include the following eleven abbreviations for provinces: AG, CA, CH, CO, DU, FE, GU, HI, JA, LO. An example of the Mexican area is: NPA NXX City ST Country 881 002 ACACOYG CH MX 881 004 ACAJETE VE MX 881 006 ACAMNTL GU MX 881 008 ACANCEH YU MX 881 011 ACATLAN HI MX 881 013 ACATLAN VE MX 881 016 ACAHTLN HI MX 881 017 ACAYUCA HI MX 881 022 ACUXCMC ME MX 881 024 ACULA VE MX For the non-Mexican portions I recognize some of the names and will include some here. 887 488 RAVENDALE2 CA 887 548 FISHCREEK1 NV 887 748 REESEVLY 5 NV 888 048 UGANIK BAY AK 888 148 SWRSBR4686 CA 888 448 DADE PARK KY 888 848 WALTON MT AB (Does John-Boy live here? :-) ) 889 048 CPBELELGHT BC 889 248 TSINHIA BC 889 481 JARVISLAKE ON 889 483 INCO LAKE ON 889 484 GURNEY ON 889 485 CENTRELAKE ON 889 486 HANSENLAKE ON 889 488 LOWRY LAKE ON 889 489 DONA LAKE ON 889 548 ABBIE LAKE ON 889 648 TRADING LK ON 889 748 LACMALURON PQ 889 848 LAC DANIEL PQ 889 948 QUIET LAKE YT 889 418 KILLINIQ NT This last one I recognize as being in the far north and probably being some sort of non-dialable earth station. --> David Esan de@moscom.com
arnold%audiofax.com@mathcs.emory.edu (Arnold Robbins) (02/22/91)
In article <telecom11.121.1@eecs.nwu.edu> tropix!moscom!de@uu.psi.com (Dave Esan) writes: > #5 404 - no plans to split at this point. I have no data on ten > digit dialling for non-local calls. Within the Atlanta area, 7D. To the rest of 404, 1+404+7D. Other NPAs, 1+NPA+7D. The 1+404+7D is fairly recent, within the past two to four years if I remember right. (If not, someone with a better memory for these things can correct me.) It used to be just 1+7D. It is also a fairly recent innovation to have exchanges that could be area codes, (e.g. 319-xxxx). > Has anyone in Atlanta heard about an impending split? I thought > Atlanta was a major growth area, and as #5 on the NPA chart (and > rising rapidly as 201 and 214 get reduced with the end of permissive > dialling) some thought must have been given. I don't know anything official. Given that the range of avaialable NXX exchanges has increased dramatically recently, it'll probably be a while before 404 splits. But I don't doubt that it will happen; Georgia is currently only two area codes altogether. Probably Atlanta will keep 404 and the rest of North Georgia would get the new area code. The Atlanta LATA is apparently the largest free calling area in the world, from what an adjunct professor who works for Southern Bell once told me. Incidentally, we've had 1 + ten digit dialing here for years and years, at least fifteen, probably more. I was in college in NYC in 1978 when it was just being introduced there, and remember wondering what all the crying and complaining was about. Likewise, I'd never seen PE6-5000 style numbers until I went to NYC, either, and remember thinking how outdated that was. Arnold Robbins AudioFAX, Inc. 2000 Powers Ferry Road, #200 Marietta, GA. 30067 INTERNET: arnold@audiofax.com Phone: +1 404 933 7612 UUCP: emory!audfax!arnold Fax-box: +1 404 618 4581
goudreau@dg-rtp.dg.com (Bob Goudreau) (02/23/91)
In article <telecom11.143.9@eecs.nwu.edu>, contact!ndallen (Nigel Allen) writes: > > Also, what do you mean by "non-dialable locations in the NANP"? > NANP = North American Numbering Plan ... > Some remote locations in northern Ontario, northern Quebec and the > Northwest Territories have dial telephone service, but long-distance > calls to those points are (or were) handled by the operator. > They have telephone numbers in the usual format, though. Er yes, I know what the NANP is. What I was asking was, what do those numbers have to do with the 88X NPAs that Dave Esan mentioned in his postings? If the non-dialable locations already have "numbers in the usual format" (presumably, undialable numbers in real NPAs), then why move them to 88X? Bob Goudreau +1 919 248 6231 Data General Corporation goudreau@dg-rtp.dg.com 62 Alexander Drive ...!mcnc!rti!xyzzy!goudreau Research Triangle Park, NC 27709, USA
steve@wattres.uucp (Steve Watt) (02/25/91)
In article <telecom11.133.8@eecs.nwu.edu> cmoore@brl.mil (VLD/VMB) writes: [ slurp! ] > You have some cases where you say "ten digit dialing"; this should be > eleven digits (1 + area code + number), as there are some places where > ten digit dialing (leading 1 NOT required) is in effect for local > calls crossing an area code border. [ more deleted ] On a somewhat related note, I'm curious ... how many area codes are there out there (like PacBell territory in 408) that don't require a 1+ for *any* call, local, long-distance, or otherwise? I once heard a rumor that 408 was the last area code in the NANP that allowed 10 digit (real 10 digit, not 1+ten.) dialing ... is PacBell that slow? Is it PacBell that's slow? Steve Watt ...!claris!wattres!steve wattres!steve@claris.com also works
scott@huntsai.boeing.com (02/26/91)
arnold%audiofax.com@mathcs.emory.edu (Arnold Robbins) writes: > Georgia is currently only two area codes altogether. Probably Atlanta > will keep 404 and the rest of North Georgia would get the new area > code. The Atlanta LATA is apparently the largest free calling area in > the world, from what an adjunct professor who works for Southern Bell > once told me. This is true. To give an example, when I lived in Atlanta I was able to make local calls to places that were a good hour's drive away. The local calling area spans several counties. Here in Huntsville the longest local call would take about twenty minutes to drive to, and many places that are within a fifteen minute's drive are long distance. Scott Hinckley Internet:scott@huntsai.boeing.com UUCP: .!uunet!uw-beaver!bcsaic!huntsai!scot DISCLAIMER: All contained herein are my opinions, they do not represent the opinions or feelings of Boeing or its management. [Moderator's Note: Do you think driving in city traffic has anything to do with it? Here in Chicago I can't go five miles in fifteen minutes during the rush hour. PAT]
john@zygot.ati.com (John Higdon) (02/27/91)
steve@wattres.uucp (Steve Watt) writes: > On a somewhat related note, I'm curious ... how many area codes are > there out there (like PacBell territory in 408) that don't require a > 1+ for *any* call, local, long-distance, or otherwise? Only part of the 408 area code (San Jose metro area) does not require a '1' for long distance. Within the last few years, '1' has been made permissive; that is you may dial it if you like and you will not mess up your call. The area south of the Santa Cruz mountains starting with Los Gatos on Hwy 17 and Morgan Hill on Hwy 101 MUST use a '1' for long distance. Also, the entire Monterey LATA (which is 408) must use the '1'. > I once heard a rumor that 408 was the last area code in the NANP > that allowed 10 digit (real 10 digit, not 1+ten.) dialing ... is > PacBell that slow? Is it PacBell that's slow? As much as it pains me to say it, the reason that a '1' has never been required is because this area was one of the early DDD-capable locations. In the original manifestations of DDD, a '1' was not specified. The switch (usually a #5 crossbar in that day) would recognize the second digit being a '1' or '0' and process the call accordingly. This was easy for a common control switch. When the Bell System wished to expand DDD into older offices and to the independents who had SXS equipment, some method had to be employed to "tell" the switch up front that this was to be a long distance call. In those offices when you dialed the '1', you were simply connected to a toll office or another CO which could accept the ten digit number. In most of the sixties there were many areas that required the '1' while others (mainly metro areas) did not. As "informal prefixes" became necessary, the '1' was introduced to those areas that had heretofore not required it. Back to 408. The office that serves my home (#5 crossbar) has had the "pure" form of DDD since 1956. In that time, there has not been sufficient consumption of prefixes to require the '1'. About four years ago, when the CONTAC adjunct was installed, the '1' became permissive -- but not required. As I was growing up, long distance never required a '1' except in the neighboring independently served communities. (Los Gatos -- Western California Telephone Company -- required a '112'.) When I move back to North Carolina for a brief time I found that the '1' requirement was ubiquitous. As the prefixes in 408 run out, the San Jose area will join everyone else in the dialing of '1' before each long distance call. John Higdon | P. O. Box 7648 | +1 408 723 1395 john@zygot.ati.com | San Jose, CA 95150 | M o o !
cmoore@brl.mil (Carl Moore) (03/16/91)
Arnold Robbins <arnold%audiofax.com@mathcs.emory.edu> writes: > I was in college in NYC in 1978 when it was just being introduced > there... In reference to 1+NPA+7D for out-of-area calls, right? That was done in late 1980 when NYC (then only in area 212) had to prepare for N0X/N1X prefixes. (Did John Lennon ever hear of this before his death?)