area codes and other telephone codes
| what | provider |
|---|---|
| Area Code NPA-NXX Listings | Area Code Facts |
| numeric order | NANP Administrator |
| location order | NANP Administrator |
| numeric order | Teltronics |
| location order | Teltronics |
| historic order | Teltronics |
| numeric order | Bennet Yee |
| location order | Bennet Yee |
| numeric order (slow) | Entisoft |
| location order (slow) | Entisoft |
| numeric order | Linc Madison |
| location order | Linc Madison |
| area code guide (1989) | Telecom Digest |
| non-operational list | Robinson |
| what | provider |
|---|---|
| area code lookup | 555-1212 |
| area code lookup | Americom |
| what | provider |
|---|---|
| U.S. and Canada | Linc Madison |
| United States | Lincs |
| Canada | Lincs |
| Caribbean area code map | Linc Madison |
| Caribbean & Pacific | Lincs |
| Washington State | North Olympic |
| Florida | Broward County Court Clerk |
| Chicago area | Len Goff/DQS |
| area code change map | Pychck Industries |
| California | Lincs |
| assorted | Lincs |
| what | provider |
|---|---|
| NPA relief & assignments | NANP Administrator |
| area code changes (Canada) & more | Phone Booth |
| area code changes (current & planned) | Rifton Enterprises |
| area code split dates | Linc Madison |
| 1997+ area code changes | Teleconnect |
| timetable | Pychck Industries |
| new area codes | Teltronics |
| search | Ameritech |
| area code & prefix changes (current month only) | Stuff Software |
| PL-NANP-127 | Cagey Consumer |
| PL-NANP-128 | Cagey Consumer |
| proposed 717 change | Bell Atlantic |
| new IN area codes overview | James Bellaire |
| new MD area codes 6/95 | Bell Atlantic |
| new MI area codes 10/96 10/96 | Ameritech |
| new NJ area codes 4/96 8/96 10/96 11/96 | Bell Atlantic |
| new OH area codes 4/96 | Ameritech |
| new PA area codes 5/96 5/96 | Bell Atlantic |
| new VA area codes 3/95 7/95 12/95 1/96 1/96 6/96 11/96 | Bell Atlantic |
| Canadian area codes 514 to 450 | Bell Canada |
| detail change info: CA | Pac Bell |
| detail change info: BC | BC Tel |
| detail change info:NW Terr | NorthwesTel |
| history of area codes | Telecom Digest |
| what | provider |
|---|---|
| country codes | Telematrix |
| country codes | Linc Madison |
| World Telephone Numbering Guide | Phone Booth |
| country/city codes | ACR |
| carrier access codes | Wil Dixon |
| Canadian prefixes | Telecom Archives |
| prefixes by NPA | The Directory |
| NANPA number resources |
| Area Code Headlines |
| North American Numbering Council |
| Florida Tele-Numbering |
| LincMad area code resources |
| Telecom Indiana |
| Telesleaze Prefixes |
| Dialing Resource Center |
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