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2 results tagged npa  ✕   ✕
Telcodata dot us https://www.telcodata.us
Tue 19 Apr 2022 06:26:29 PM PDT archive.org

A still alive and updated archive of telephony information. Area codes, exchanges, regional telcos, rate centers, deployed hardware types, and more.

You can even search on some data sets.

archive telephony phreaking companies records npa equipment search
NANPA : North American Numbering Plan Administration https://nationalnanpa.com/
Tue 20 Mar 2018 03:04:51 AM PDT archive.org
voice network reference government telecom phones database npa nxx telephony numbers research tools
5006 links, including 377 private
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