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Other Telecom-Related Sites

• Somos NANPA — the administrators of the area code system [NANPA was formerly administered by Neustar, and before that by Lockheed-Martin and Bellcore.] [link updated 2018-04-02]
• One of the most-requested items is a listing of prefixes within an area code. NANPA now offers a table showing the assigned prefixes in each area code. assigned and available prefixes. Select the state and then the NPA (area code). The listings are in HTML table format, with the option to download in Microsoft Excel format. [link updated 2018-04-02]
• iconectiv (formerly Telcordia, and before that Bellcore) Traffic Routing Administration (T.R.A.), official information on prefixes and other routing issues. T.R.A. used to issue a free monthly update called the NNAG, listing prefixes scheduled to be activated or deleted in the near future. However, free distribution of the NNAG was discontinued.
• Listing of state and provincial regulatory agency web sites, provided by the state of New York [link updated 2018-04-02]
• TELECOM Digest online: archives, chat room, etc. [link updated 2018-04-02]
• World Telephone Numbering Guide (Dave Leibold) [link updated 2002-02-11]
• List of UK STD Codes (area codes in the United Kingdom) [new link 2018-04-02]
• Telecom Paper, general telecom news [link updated 2018-04-02]
• Prefix lookup from TheDirectory.ORG
• ABTolls: info on phone rates for one-plus, dialaround, calling card, and inbound toll-free service; [defunct as of 2016, archive only]
• “10-10” phone rates: information about charges for using various “dial-around” long-distance carriers, including surcharges and monthly fees, for domestic and international calls.
• AreaCoder from Stevens Creek Software (software for PalmOS to update an address list, either automatically or interactively; can also “Hot Sync” with PC or Macintosh-based PIMs)
• The Telephone Exchange Name Project (remember KLondike, PEnnsylvania, WAlnut, ... ?)
• What does my telephone number spell? (I actually knew someone once whose number was 843-7448....)
• Goodman’s Bookmarks - general information, with a page devoted to Telecom

Other Sites that May Be of Interest

• Anyplace America, photos, maps, and info about the United States, with free USGS topological maps in PDF format or purchase laminated printed versions
• U.S. Postal Service ZIP Code information [link updated 2018-04-02]
• ZIP Code information, including ZIP Code to area code (approximate) correlation: ZIPInfo (New!)
• Canadian PostCode information (or get it en français) [both links updated 2018-04-02]
• Australian Postcode lookup (Auspost) [link updated 2003-01-15]
• U.K. Royal Mail offers a Postcode lookup
• “Web Sites That Suck” — a guide to web page design by counterexample
• Darren Stuart Embry’s proof that pi is rational
• Submit a new, corrected, or updated URL for this list
• Feedback about this list of links or about the LincMad site
• Copyright notice

Dead Links

• The TelMex web page about new area codes in México is no longer available. (Note: Every number in México changed, and the new numbers are mandatory effective 2002-02-16.) All landline numbers in Mexico are now of the form +52 nn xxxx-xxxx (Mexico City = 55, Guadalajara = 33, Monterrey = 81) or of the form +52 nnn xxx-xxxx (all other locations). Numbers for mobile phones (cellphones) must insert ‘1’ between the country code +52 and the city code; for example, +52 1 55 xxxx‑xxxx for a mobile phone from Mexico City.
• BellSouth had an excellent page about the South Carolina coastal area code split (803/843) — an exemplary site. It had a MAP of the area code split, a LIST OF TOWNS affected by the split, and excellent overall detail on the whole split process. (The pages are no longer on the web, since the 803/843 split is “old news,” but BellSouth is to be commended for its excellent work on that project.)

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