We log corrections of facts and changes to the rules that decide what the site shows.
- : Site built. Data rule: a geographic code page is offered to search engines with a NANPA record, an exchange tied to a place and FTC complaints at a pace of at least 120 a year (FTC_MIN_YEAR=120); toll-free always; planned codes with a date or planning letter; state pages with at least 2 codes; monthly reports with at least 100,000 complaints.
- : Corrections after two reviews: time zones of overlay codes (986, 930 and others) now include every zone of their overlay group; exhaust forecasts show only NANPA's current edition; 403 and 780 no longer claim all of Alberta; planned codes are no longer listed as in service; robocall shares leave out complaints that do not say. Data rule: new codes (INDEX_NEW_MONTHS=36) and codes with Bing demand at least that of the least searched code the FTC pace admits are offered to search engines too.