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Viewing is free for everyone · bulk downloads are $96/year

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Browse everything: area-code records, relief tracker, recent prefix assignments, change log. Basic datasets (area codes, relief events) stay free under CC BY 4.0.

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Member · $96/year

Research access

Bulk exports of the full prefix/assignment dataset (204,961 rows, CSV), refreshed from the daily NANPA file. Assignment history included. API access to follow at no extra cost.

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Why the split: keeping records viewable by everyone is part of our editorial standards; memberships fund the daily data pipeline. Basic datasets remain free and CC BY 4.0. Payments are processed by Stripe under GreatNumber LLC, the publisher of NumberResearch.org.