Date: 4 Jan 93 20:26:34 GMT
From: de@moscom.com (David Esan)
Newsgroups: comp.dcom.telecom
Subject: V&H Report January 1993
Organization: Moscom Corporation, Pittsford NY
X-Submissions-To: telecom@eecs.nwu.edu
X-Administrivia-To: telecom-request@eecs.nwu.edu
X-Telecom-Digest: Volume 13, Issue 8, Message 1 of 11

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, one sorted by NPA, the other sorted (in reverse) of the
number of exchanges in a given NPA.

The tape is dated 15 January 1993.  I am not responsible for the
information supplied in this tape.  Yes, the date is several weeks
out.  The information will be current as of that date.  It is
distributed early so that it can loaded by that date.

I have not included the following in my counts of exchanges:

  - NXX's that are not dialable by a standard user (ie nxx's that begin
    with a 1 or 0).
     
  - Mexican exchanges in the 52? series of area codes.  I've got them,
    you can dial them with 011, but they're not really NPAs.

  - Exchanges that are non-dialable in the 88? series of area codes.  I've
    got those also, but you can't dial them, so I'm not including them.

This tape includes information for the new NPA's 909 and 210.  905 in
Toronto, and 810 in Detroit have not appeared yet.

The fields are:
                        ------------ rank last in October, 1992
	      213: 736 (1, 7)
  area code --^^^  ^^^     ^------- number of new exchanges
                    |-------------- total number of exchanges

301: 751 ( 1,  7)   416: 678 ( 6,  4)   206: 642 (11,  7)   604: 582 (20, 13)
512: 703 ( 3,  2)   919: 672 ( 8, 12)   708: 634 (14, 25)   216: 579 (19,  8)
212: 700 ( 4,  3)   215: 660 (10, 11)   713: 627 (13, 10)   503: 574 (18,  3)
313: 680 ( 7, 12)   714: 656 ( 9,  2)   703: 610 (16,  7)   803: 564 (11, xx)
205: 680 ( 5,  4)   602: 644 (12,  9)   403: 605 (15,  1)   303: 563 (11, xx)

Of the top 20 we know:

1. 301 - split in progress.  Number should be reduced by split.
2. 512 - split in progress.  Number should be reduced by split.
3. 212 - split in progress.  Number should be reduced by split, and the 
	 movement of the Bronx to 718.
4. 313 - split in progress.  Number should be reduced by split.
6. 416 - split soon to be in progress.  Number should be reduced by split.
9. 714 - split in progress.  Number should be reduced by split.

Given all of that, the NPA that is largest and is not splitting nor
has plans (at this time) to split, is 205 in Alabama.  Other NPAs that
are candidates for a split include eastern North Carolina (714),
Philadelphia (215), and 602 (Arizona).

The 3 smallest NPA's were and remain :

906: 117 - Michigan's Upper Peninsula  (+1 new exchange)
807: 105 - Western Ontario (No change)
917: 104 - The new NYC NPA (+40 new exchanges)


A new statistic that I have added to this report is percentage growth.  I have
taken the difference between the number of exchanges in January and October,
and divided by the number in January and multiplied by 100.  In math notation
that would be:

      ((October # - January #)/January #)*100

The top ten are:

917 62.50 (Growth of new NYC NPA)
210 6.47 (Growth of new Texas NPA)
909 5.03 (Growth of new California NPA)
305 4.37 (Western Florida, rapid growth area)
708 4.10 (Chicago Suburbs, rapid growth)
704 3.42 (Western North Carolina)
312 3.41 (Chicago City)
702 3.16 (Nevada)
310 3.05 (Growth of new Los Angeles NPA)
809 2.97 (Growth of the Caribbean)

The only NPAs to be in last reports top ten and this reports top ten are:
    310, 708

All the NPAs and the number of nxx's in each are listed below:

301: 751    501: 553	201: 442    502: 365	715: 321    814: 268
512: 703    314: 547	412: 441    914: 362	819: 314    315: 266
212: 700    404: 543	614: 432    704: 362	815: 313    806: 264
313: 680    813: 537	515: 431    406: 361	915: 312    309: 263
205: 680    405: 534	407: 420    701: 357	805: 300    709: 261
416: 678    904: 532	402: 418    801: 356	208: 299    608: 254
919: 672    619: 531	601: 417    605: 356	613: 298    509: 251
215: 660    305: 525	415: 414    519: 355	609: 298    603: 243
714: 656    817: 523	410: 414    504: 354	918: 296    901: 232
602: 644    203: 515	818: 411    204: 352	218: 296    308: 210
206: 642    804: 505	210: 411    207: 348	409: 295    417: 206
708: 634    514: 497	617: 408    912: 347	706: 294    707: 197
713: 627    718: 495	907: 401    908: 347	812: 286    802: 181
703: 610    414: 494	616: 400    510: 346	712: 286    506: 179
403: 605    717: 493	716: 398    419: 344	202: 284    607: 176
604: 582    312: 485	516: 394    304: 344	903: 282    719: 174
216: 579    513: 474	508: 389    318: 343	606: 275    307: 169
503: 574    310: 473	316: 376    319: 339	808: 274    401: 139
803: 564    816: 469	219: 373    517: 338	507: 273    413: 133
303: 563    317: 460	213: 373    618: 335	705: 272    302: 127
612: 561    306: 453	217: 370    408: 334	909: 271    906: 117
615: 560    916: 450	418: 367    505: 329	902: 271    807: 105
214: 554    913: 445	209: 367    702: 326	518: 270    917: 104
809: 553


David Esan      de@moscom.com