NumberResearchRecent thousands-block assignments
3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days — NPA 939
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-07-11 | 939-915-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2024-07-10 | 939-426-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-07-10 | 939-426-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-07-10 | 939-426-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-07-10 | 939-427-4XXX | 4000–4999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | SANTURCE | PR |
| 2024-07-02 | 939-423-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2024-07-02 | 939-424-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2024-06-12 | 939-421-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA BAJA | PR |
| 2024-06-12 | 939-421-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA BAJA | PR |
| 2024-06-12 | 939-421-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA BAJA | PR |
| 2024-06-12 | 939-610-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-06-12 | 939-610-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-06-12 | 939-610-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-06-11 | 939-210-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-06-11 | 939-210-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-06-11 | 939-210-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-06-11 | 939-347-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | SAN GERMAN | PR |
| 2024-06-11 | 939-354-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | TRUJILLOAL | PR |
| 2024-06-11 | 939-377-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAYEY | PR |
| 2024-06-11 | 939-387-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2024-06-11 | 939-387-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | PONCE | PR |
| 2024-06-11 | 939-398-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2024-06-11 | 939-398-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2024-06-11 | 939-398-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2024-06-11 | 939-733-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | NARANJITO | PR |
| 2024-06-10 | 939-373-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2024-06-10 | 939-373-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2024-06-10 | 939-373-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | AGUADILLA | PR |
| 2024-06-10 | 939-737-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2024-06-10 | 939-737-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2024-06-10 | 939-737-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONNOR | PR |
| 2024-05-21 | 939-396-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CAROLINA | PR |
| 2024-05-21 | 939-693-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | ARROYO | PR |
| 2024-05-07 | 939-535-3XXX | 3000–3999 | Assigned | LUMEN TECHNOLOGIES PUERTO RICO, LLC | 091J | SANTURCE | PR |
| 2024-05-01 | 939-484-0XXX | 0000–0999 | Assigned | NEUTRAL TANDEM - PR | 559F | SANTURCE | PR |
| 2024-05-01 | 939-484-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | SANTURCE | PR |
| 2024-03-15 | 939-229-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-229-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-229-5XXX | 5000–5999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-229-6XXX | 6000–6999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-229-7XXX | 7000–7999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-229-8XXX | 8000–8999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-229-9XXX | 9000–9999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-348-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-348-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-348-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCEES | PR |
| 2024-03-15 | 939-392-0XXX | 0000–0999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LAJAS | PR |
| 2024-03-15 | 939-392-1XXX | 1000–1999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LAJAS | PR |
| 2024-03-15 | 939-392-2XXX | 2000–2999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LAJAS | PR |
| 2024-03-15 | 939-392-3XXX | 3000–3999 | Assigned | LIBERTY MOBILE PUERTO RICO INC. | 639J | LAJAS | PR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.