de@cs.rochester.edu (Dave Esan) (10/12/89)
In article <telecom-v09i0376m02@vector.dallas.tx.us> covert@covert.enet.dec. com (John R. Covert 13-Sep-1989 2056) writes: >X-TELECOM-Digest: volume 9, issue 376, message 2 of 6 > >From: GMONTI "Greg Monti" 12-SEP-1989 16:56:25.63 > >Subj: TD Submission: NPA 215 >How full is Area Code 215 (Philadelphia and environs)? 215 may be the most >populated Area Code in the U.S. which does not yet use prefixes containing a >1 or a 0 as the second digit. Well I took that as a bit of a challenge. Using the BellCore V&H tape that just arrived (and finally had information on area code 708 on it), I found the following information: npa # of nxx npa # of nxx npa # of nxx npa # of nxx 312: 769 301: 650 313: 586 403: 575 214: 671 212: 624 205: 583 416: 573 213: 662 404: 611 415: 580 202: 566 201: 660 919: 603 512: 576 215: 555 215 is actually the 16th fullest npa in North America. Note of course that 312 is splitting, and will reduce its number of nxx's in the next 6 months, 214 is scheduled for a split, as is 201. 202 and 301 will have more room now that they must dial a 1 to other DC area codes, 415 is scheduled for a split. 416 recently removed the has allowed the implementation of NXX where previously only NNX was allowed. Most interesting to me is that 212, and 213 which both have split in the last five years are nearly full enough to qualify for a another split. For those interested, I include in numerical order all the npas, and their count of nxx's. Yes, 302 (Delaware) has the fewest (97). # of # of # of # of # of # of # of npa nxx npa nxx npa nxx npa nxx npa nxx npa nxx npa nxx 201: 660 303: 468 405: 475 507: 251 609: 250 713: 474 815: 271 202: 566 304: 315 406: 323 508: 339 612: 482 714: 504 816: 428 203: 445 305: 422 407: 333 509: 224 613: 262 715: 294 817: 443 204: 334 306: 426 408: 266 512: 576 614: 379 716: 347 818: 312 205: 583 307: 137 409: 263 513: 448 615: 494 717: 453 819: 295 206: 510 308: 189 412: 408 514: 445 616: 349 718: 365 901: 205 207: 325 309: 250 413: 126 515: 389 617: 330 719: 146 902: 246 208: 263 312: 769 414: 420 516: 339 618: 311 801: 300 904: 464 209: 297 313: 586 415: 580 517: 303 619: 433 802: 171 905: 260 212: 624 314: 494 416: 573 518: 236 701: 341 803: 467 906: 108 213: 662 315: 246 417: 189 519: 326 702: 247 804: 446 907: 337 214: 671 316: 345 418: 348 601: 379 703: 513 805: 250 912: 306 215: 555 317: 378 419: 319 602: 552 704: 310 806: 236 913: 417 216: 521 318: 321 501: 512 603: 219 705: 253 807: 101 914: 311 217: 341 319: 319 502: 328 604: 523 706: 158 808: 226 915: 275 218: 268 401: 120 503: 481 605: 320 707: 163 809: 449 916: 371 219: 329 402: 392 504: 306 606: 256 708: 415 812: 259 918: 274 301: 650 403: 575 505: 288 607: 158 709: 240 813: 449 919: 603 302: 97 404: 611 506: 157 608: 226 712: 264 814: 250 --> David Esan rochester!moscom!de
cmoore@brl.mil (VLD/VMB) (10/12/89)
You write: > 416 recently removed the has allowed the implementation of NXX where > previously only NNX was allowed. Did you mean to delete "removed the"? Also, you are sure you are referring to 416 (Ontario) instead of 415 (Calif.)? (If 416, it's new info for me.) Yes, I see that just before this excerpt you said "415 is scheduled for a split.". > 202 and 301 will have more room now that they must dial a 1 to other > DC area codes. This wording is confusing. The upshot of earlier notes in & out of Telecom is that Md. & Va. suburbs are being removed from area code 202; therefore, 202 will have more room. This does not affect the room in areas 301 or 703 except that some prefixes previously-forbidden near DC (i.e., duplicating DC or the suburbs across the Potomac) will be allowed there. Local calls in the DC area will require 10 digits if crossing area code boundary (no leading 1, which is required on toll calls from there), thus permitting some current 11-digit local & extended area calls in the DC area to reduce to 7 digits later.
johnl@esegue.segue.boston.ma.us (John R. Levine) (10/13/89)
In article <telecom-v09i0441m02@vector.dallas.tx.us> Dave Esan <moscom!de@ cs.rochester.edu> writes: >215 is actually the 16th fullest npa in North America [with 555 prefixes]... >Yes, 302 (Delaware) has the fewest (97). That makes sense. 215 and 302 are both geographically quite compact and relatively urbanized. That means there are relatively few places that need prefixes of their own, so the telco can fill up a prefix before issuing a new one. Compare that to 907, Alaska, with 337 prefixes and 403, Alberta, the Yukon, and part of the NWT, with 575. Neither contains very many people, but they're all spread out and so you have lots of prefixes serving only a few hundred people each.
mustard@uunet.uu.net (Sandy Mustard) (10/14/89)
What is the Bellcore V&H tape? Thanks Sandy Mustard mustard@sdrc.UU.NET
ccplumb@rose.waterloo.edu (Colin Plumb) (10/16/89)
In article <telecom-v09i0445m01@vector.dallas.tx.us> cmoore@brl.mil (VLD/VMB) writes: > You write: >> 416 recently removed the has allowed the implementation of NXX where >> previously only NNX was allowed. > Did you mean to delete "removed the"? Also, you are sure you are > referring to 416 (Ontario) instead of 415 (Calif.)? (If 416, it's new > info for me.) New to me, too, and while not at university I live in 416. One thing I rather like about the local phone service is that all LD calls must be prefixed with "1". If you try to dial an exchange in 416 that's not in the local calling area (i.e. metered call), you get a recording "You have dialled a number to which long distance charges apply" followed by dial-1-first instructions. I suppose you could do it if you changed the current 1+NNX-XXXX to 1+416+NXX-XXXX, but I'd think I'd have heard about it. From other discussions, I gather that in some places, normal 7-digit calls can be long distance, so you have to dig through the phone book to figure out whether it costs you anything. I prefer "leading 1 means special billing." I've never tried dialling an 800 number without the 1 to see if it works. I should sometime. -Colin
cmoore@brl.mil (VLD/VMB) (10/16/89)
Yes, there are some cases where 7D call can be long distance (within your own area code). This exists in California at least in 213, 818, 415, 408; New Jersey (201,609); and recently it was noted in the Digest that 1+7D within 313 area in Michigan will reduce to 7D (preparing for N0X/N1X there?). I noted years ago that 1+ was not necessary on pay phones on 475 and 478 in Delaware (302).
tell@oscar.cs.unc.edu (Stephen Tell) (10/18/89)
I notice from this list that our NPA (919, North Carolina) is 8th from the top. In my last bill from Southern Bell was an insert saying that shortly we will be required to dial the whole 1+10 digits for long distance calls. I suspect that these observations are related; does anyone know if 919 is in for a split or are NXX prefixes now going to be assigned here? I've notice no N0X/N1X prefixed yet; but don't have definite information. Steve "If it walks like a duck, talks like a duck, and is in black and white, chances are, it's a MACINTOSH!"