─────── § 04. NPA RECORD · 170 · FOLIO 0001 OF 0801 ──────────────
170
United States NPA Record
Area code 170 was used in the San Francisco Bay Area for the TravInfo system before transitioning to 511.
Area code 170 was used in the San Francisco Bay Area for the TravInfo system before transitioning to 511.
IN SERVICE
§ 04.06
Documentary Record · 0 events
CHRONOLOGICAL ORDER
— No events recorded for NPA 170 —