NumberResearchRecent thousands-block assignments
6 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 313
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 |
|---|---|---|---|---|---|---|---|
| 2009-09-11 | 313-355-7XXX | 7000–7999 | Assigned | ONVOY, LLCV - MI | 543C | DETROITZN1 | MI |
| 2009-09-11 | 313-355-8XXX | 8000–8999 | Assigned | ONVOY, LLCV - MI | 543C | DETROITZN1 | MI |
| 2009-09-11 | 313-355-9XXX | 9000–9999 | Assigned | ONVOY, LLCV - MI | 543C | DETROITZN1 | MI |
| 2009-09-11 | 313-468-1XXX | 1000–1999 | Assigned | ONVOY, LLCV - MI | 543C | DETROITZN4 | MI |
| 2009-09-02 | 313-703-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-703-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-703-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-703-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-703-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-703-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-703-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-977-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-977-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-977-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-977-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-977-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-977-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-977-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-02 | 313-977-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-08-25 | 313-912-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-08-25 | 313-912-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-08-03 | 313-759-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-08-03 | 313-759-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-07-28 | 313-759-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-07-28 | 313-759-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-07-24 | 313-468-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | DETROITZN4 | MI |
| 2009-06-19 | 313-695-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-06-19 | 313-695-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-06-17 | 313-695-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-06-17 | 313-695-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-06-15 | 313-375-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-06-15 | 313-375-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-15 | 313-499-3XXX | 3000–3999 | Assigned | CLEAR RATE COMMUNICATIONS, LLC | 046L | DETROITZN2 | MI |
| 2009-05-15 | 313-564-0XXX | 0000–0999 | Assigned | CLEAR RATE COMMUNICATIONS, LLC | 046L | DETROITZN3 | MI |
| 2009-05-15 | 313-794-9XXX | 9000–9999 | Assigned | CLEAR RATE COMMUNICATIONS, LLC | 046L | DETROITZN5 | MI |
| 2009-05-08 | 313-554-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-554-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-554-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-674-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-674-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-674-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-674-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-722-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-722-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-722-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-722-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-722-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-722-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-05-08 | 313-722-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-04-16 | 313-444-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | DETROITZN2 | MI |
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.