About ASTCA
ASTCA is the American Samoa Telecommunications Authority, a government-operated ILEC providing local telephone, long distance, mobile, and broadband services across American Samoa's main and outer islands. It primarily serves residential and corporate customers in this US territory, with over 80% household penetration for telephone service, and is the sole provider of originating long distance there. ASTCA operates independently without subsidies, handling interstate termination via major US carriers.
- Parent: American Samoa Government
- Headquarters: Pago Pago, AS
- Services: ILEC local exchange, wireline long distance, postpaid mobile, fiber broadband
Sources: ASTCA - Local Services Notes · Postpaid Mobile - ASTCA · ASTCA Account Number, Password & Contact Info - Best Cellular · ASTCA – Broadband & Telecom
Numbers by age tier
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HQ: Pago Pago, AS

Block portfolio at a glance
By age
- Recent (0). Last 18 mo
- Medium (0)
- Old (0)
- Undated (3)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- AS AS · 3
Top area codes
Bars show total blocks; red overlay is recent.
Sister OCNs in the ASTCA group
Same customer-facing carrier, different state-registered OCN. Combined stats are on the ASTCA group page.
| OCN | Company name on file | HQ state | Total | Recent |
|---|---|---|---|---|
| 3900 | American Samoa Telecommunications Authority | AS | 10 | · |
