de@cs.rit.edu> (04/23/91)
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.
The fields are:
------------ rank last quarter
213: 736 (1, 7)
area code --^^^ ^^^ ^------- number of new exchanges
|-------------- total number of exchanges
213: 736 (1, 7) 212: 668 (6, 5) 205: 630 (12, 15) 714: 581 (16, 8)
214: 730 (2, 12) 415: 657 (7, 15) 919: 624 (11, 4) 206: 579 (17, 9)
201: 703 (3, 9) 512: 639 (8, 5) 215: 603 (13, 7) 501: 569 (18, 5)
301: 694 (4, 4) 416: 633 (9, 5) 602: 594 (15, 5) 604: 555 (19, 2)
404: 679 (5, 12) 313: 630 (10, 4) 403: 593 (14, 2) 703: 552 (20, 6)
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. Intra-NPA calls require the dialling
of the NPA. Note the large growth of the NPA.
#6. 212 - due to split to 917 some time 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 10 digit dialling
for non-local calls.
#9. 416 - due to split to 905 in 1993. Intra-NPA calls require the dialling
of the NPA.
#10. 313 - no plans to split at this point. Intra-NPA calls require the
dialling of the NPA.
#16. 714 - will split to 909 beginning November 1992.
The other area codes are given below.
213 : 736 713 : 547 804 : 462 617 : 370 318 : 329 409 : 285 518 : 250
214 : 730 216 : 541 305 : 460 516 : 370 209 : 329 613 : 283 608 : 243
201 : 703 405 : 539 513 : 450 508 : 365 618 : 325 208 : 277 509 : 237
301 : 694 615 : 529 816 : 447 418 : 359 504 : 324 805 : 276 603 : 231
404 : 679 708 : 527 306 : 446 818 : 358 319 : 324 812 : 274 901 : 221
212 : 668 612 : 524 913 : 433 316 : 358 304 : 324 712 : 271 308 : 197
415 : 657 503 : 523 916 : 424 217 : 355 912 : 320 609 : 266 417 : 196
512 : 639 314 : 522 312 : 418 701 : 351 908 : 314 705 : 265 706 : 189
416 : 633 303 : 512 412 : 417 219 : 344 517 : 312 903 : 264 707 : 177
313 : 630 803 : 504 317 : 416 204 : 344 905 : 311 606 : 264 802 : 175
205 : 630 809 : 494 515 : 407 605 : 342 715 : 310 202 : 264 506 : 175
919 : 624 619 : 493 402 : 407 519 : 342 505 : 310 507 : 263 607 : 163
215 : 603 904 : 491 907 : 406 406 : 341 819 : 307 902 : 261 719 : 159
602 : 594 813 : 490 718 : 403 502 : 336 918 : 306 806 : 259 307 : 152
403 : 593 514 : 481 614 : 402 704 : 332 915 : 304 309 : 258 401 : 133
714 : 581 817 : 480 601 : 393 207 : 332 408 : 299 814 : 257 413 : 130
206 : 579 203 : 480 407 : 380 914 : 331 815 : 291 709 : 256 302 : 110
501 : 569 717 : 466 716 : 373 801 : 330 702 : 288 808 : 254 906 : 109
604 : 555 414 : 465 616 : 373 419 : 329 218 : 288 315 : 254 807 : 105
703 : 552
David Esan de@moscom.comCarl Moore (VLD/VMB) <cmoore@brl.mil> (04/25/91)
I have this for use of N0X/N1X in area code 512: 512, Texas, 9 September 1990 (1+ NPA+ 7D on all toll calls) Please don't say "ten digit dialing" unless you really do mean without the leading 1. Local calls going across area code boundaries in Dallas/Ft.Worth and Washington DC areas are made with NPA+7D (NO leading 1), with long distance being 1+NPA+7D from those places. For the 201/908 split, I have: 201/908 New Jersey, 1 January 1991 (full cutover 8 June 1991) You write "The other area codes are given below.". Try using "included" instead of "given", because such list also includes the area codes commented on earlier. And what is the meaning of 905 and 706 showing up on such list? (905 and 706 are the now- discontinued pseudo-area-codes for parts of Mexico; 905 has been announced for split of 416, and this Digest just got word of 706 for split of 404 in Georgia -- the first I have heard for a split of 404, which does now use N0X/N1X prefixes.)
de@cs.rit.edu> (04/30/91)
In article <telecom11.305.15@eecs.nwu.edu> cmoore@brl.mil (VLD/VMB) writes: X-Telecom-Digest: Volume 11, Issue 305, Message 15 of 16 > For the 201/908 split, I have: > 201/908 New Jersey, 1 January 1991 (full cutover 8 June 1991) I did not note the dates of the cutover, merely that it has occurred, and that the number of NXX in this NPA will be reduced when the split is complete. In fact I wrote: > #3. 201 - has split to 908. Permissive dialling will end this year, > and number ... will be reduced. which does not contradict your statement, and in fact makes your statement unneccessary. > And what is the meaning of 905 and 706 showing up on such list? I noted in the beginning of my article (as I have noted in the beginning of each article since I began posting this list to comp.dcom.telecom) that the list is based on the V&H tape from BellCore, and that I just am compiling some statistics. BellCore has not removed these area codes from the tape as of 4/15/91. I know that they are no longer in use. Does BellCore? I will also note that as of the posting of the article I was unaware of the proposed split of the 404 area code to 706. This will be in my article of 7/15/91. David Esan de@moscom.com