STATION 01 · TEST DATA ONLY
Test phone-number generator
Fictional-range NANP numbers: a real area code, the 555 exchange, and a line number inside 0100–0199 — the block reserved for fictional use. Deterministic by seed: your CI fixtures produce the same list on every run.
What you can and cannot do with these
Use them as fixtures, form-fillers, seed data, screenshot props, and parser test cases. Do not dial them expecting a test line — 555-01XX numbers are not routed to a subscriber, which is precisely the point. Need numbers that ring? That is a telephony product, not a test-data bench, and it is not sold here.