NumberResearchRecent thousands-block assignments
3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2024-10-08 | 939-381-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DORADO | PR |
| 2024-10-08 | 939-381-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DORADO | PR |
| 2024-10-02 | 939-433-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-10-02 | 939-433-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-10-02 | 939-433-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-10-02 | 939-433-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-10-02 | 939-433-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-10-02 | 939-433-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-09-19 | 939-390-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA BAJA | PR |
| 2024-09-19 | 939-426-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-09-09 | 939-215-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-09-09 | 939-215-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-09-09 | 939-220-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-09-09 | 939-220-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-09-09 | 939-220-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-09-09 | 939-303-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-09-09 | 939-398-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | GUAYANILLA | PR |
| 2024-09-09 | 939-426-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-09-09 | 939-426-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-09-09 | 939-426-3XXX | 3000–3999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-09-09 | 939-431-4XXX | 4000–4999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-09-09 | 939-431-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-09-09 | 939-431-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-09-09 | 939-431-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-09-09 | 939-431-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-09-09 | 939-492-2XXX | 2000–2999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-07-30 | 939-210-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-07-30 | 939-210-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-07-30 | 939-215-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-07-30 | 939-215-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | HUMACAO | PR |
| 2024-07-30 | 939-426-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | CAGUAS | PR |
| 2024-07-30 | 939-492-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-07-30 | 939-492-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-07-30 | 939-787-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-07-30 | 939-787-6XXX | 6000–6999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-07-30 | 939-787-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-07-17 | 939-303-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-07-17 | 939-303-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-07-17 | 939-492-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RIO GRANDE | PR |
| 2024-07-17 | 939-787-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-07-17 | 939-787-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-07-17 | 939-787-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BAYAMONSUR | PR |
| 2024-07-11 | 939-609-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-07-11 | 939-609-8XXX | 8000–8999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-07-11 | 939-609-9XXX | 9000–9999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | ISABELA | PR |
| 2024-07-11 | 939-699-0XXX | 0000–0999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RINCON | PR |
| 2024-07-11 | 939-699-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RINCON | PR |
| 2024-07-11 | 939-699-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | RINCON | PR |
| 2024-07-11 | 939-915-1XXX | 1000–1999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
| 2024-07-11 | 939-915-7XXX | 7000–7999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | VEGA ALTA | PR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.