telco-data

ansi-t1-refslist: https://web.archive.org/web/20060929025357fw_/http://www.its.bldrdoc.gov/projects/devglossary/t1g-forw.html
areacode-database-cols: Describes columns in NANPA area codes database below
areacode-database-rows: Database containing details on area codes from NANPA
att-800-numbers: businesses with 800 numbers from AT&T
areacode-states-locations: Information about area codes in the United States
country-codes-alphabetical: Country codes assigned by ITU-T (alphabetical order)
country-codes-notes: Define single letter notes referenced in country code files
country-codes-numerical: Country codes assigned by ITU-T (numerical order)
country-code-org: CSV data file taken from http://countrycodes.org
country-exit-codes: international exit codes by country sorted alphabetically
country-service-restrictions: an outline of services missing in each country
dualtone-multifreq-digits: table of DTMF digits, frequencies and lengths http://www.blueboxing.org/ccitt5.html
geographical-codes-numerical: Geographical codes from ITU-T (numerical order)
itu-cybersecurity-definition: Cybersecurity as defined by the International Telecommunication Union
itu-mobile-glossary: Glossary of mobile terms published by ITU-T
itu-mobile-glossary: ITU-T Glossary of Mobile Terms
mobile-codes-alphabetical: alphabetized mobile or geographical area codes
mobile-codes-notes: Define single letter notes referenced in mobile code files
mobile-codes-numerical: numerically sorted mobile or geographical area codes
mobile-operator-churn: CSV describing account churn of Mobile telecom operators
nanpa-class-codes: NANPA vertical service code assignments
national-network-tones: Specifications/meanings of tones by country via ITU-T
sdf-outbound-rates: CSV of outbound VoIP rates taken from the SDF FTP server
security-roadmap-taxonomy: https://itu.int/en/ITU-T/studygroups/2013-2016/17/ict/Pages/ict-part02.aspx
sms2email-mailer-records: Cellular carriers' SMTP gateways for SMS messages
sms-spam-collection: various unsolicited commercial SMS messages in the UK
star-codes-list: like vertical-service-codedefs entry below, but with more codes listed and briefer descriptions
telephony-acronyms-abbrevs: Telephony Acronyms and Abbreviations List From Hell
vertical-service-codedefs: NANPA vertical service code definitions
xfinity-voice-features: XFinity Voice Features, CLASS Services, Star Codes, etc.