Public regulatory phone
(800) 937-8997
Associations below come from public FCC regulatory records. Confidence describes the source relationship, not current ownership of the number.
| Company or contact | FRN | System | Source record | Confidence | Observed |
|---|---|---|---|---|---|
| TMUS Fiber LLC customer_inquiries | 0037828100 | FORM499 | 838408 | Authoritative identifier (100.0%) | 2026-08-02 04:48:13 |
| PRWireless PR, LLC customer_inquiries | 0026287664 | FORM499 | 826742 | Authoritative identifier (100.0%) | 2026-08-01 07:18:09 |
| T-Mobile Puerto Rico LLC customer_inquiries | 0014848477 | FORM499 | 825855 | Authoritative identifier (100.0%) | 2026-08-01 06:48:06 |
| T-Mobile USA, Inc.- CONSOLIDATED customer_inquiries | 0006945950 | FORM499 | 822060 | Authoritative identifier (100.0%) | 2026-08-01 04:18:06 |
| Assurance Wireless USA, L.P. customer_inquiries | 0006901011 | FORM499 | 822596 | Authoritative identifier (100.0%) | 2026-08-01 04:18:06 |
| Sprint Spectrum, L.P. customer_inquiries | 0006693022 | FORM499 | 811754 | Authoritative identifier (100.0%) | 2026-07-31 20:48:04 |
| T-Mobile Puerto Rico LLC customer_inquiries | 0014848477 | FORM499 | 804639 | Authoritative identifier (100.0%) | 2026-07-31 17:04:38 |