Google libphonenumber data attribution

Copyright (C) 2009 The Libphonenumber Authors (number metadata).
Copyright (C) 2011 The Libphonenumber Authors.
Licensed under the Apache License, Version 2.0. See libphonenumber.txt.

This is a project-generated attribution notice, not an upstream NOTICE file.
Source revision: 33be5664343676b27761213d8f5500d682568ea7 (2026-10-08).
Retrieved: 2026-10-15.
Sources:
https://github.com/google/libphonenumber/blob/33be5664343676b27761213d8f5500d682568ea7/resources/geocoding/en/1.txt
https://github.com/google/libphonenumber/blob/33be5664343676b27761213d8f5500d682568ea7/resources/PhoneNumberMetadata.xml

Modifications: Extracted 415 US/Canadian geographical area-code prefixes
(359 US, 56 Canada) from fixed-line metadata and English geocoding data.
410 labels use exact area-code-prefix source records. Five broader region
labels (203, 310, 713, 718, 905) were aggregated only after checking that every
more-specific record has the same state/province suffix. Corrected source spelling for 257 from British Colombia to British Columbia.
Timezone data is not included. This is a supported-prefix snapshot, not the official NANPA
assignment or in-service register, and does not locate a caller or identify
a subscriber. Absence from the snapshot does not establish invalidity.