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 |
|---|---|---|---|---|---|---|---|
| 2010-01-29 | 313-676-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-11-20 | 313-404-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-11-20 | 313-404-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-11-09 | 313-681-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-11-09 | 313-681-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-11-03 | 313-681-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-11-03 | 313-681-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-23 | 313-358-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-23 | 313-358-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-10-22 | 313-288-7XXX | 7000–7999 | Assigned | CLEAR RATE COMMUNICATIONS, LLC | 046L | DETROITZN4 | MI |
| 2009-10-22 | 313-312-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | DETROITZN3 | MI |
| 2009-10-13 | 313-355-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | DETROITZN1 | MI |
| 2009-10-07 | 313-373-0XXX | 0000–0999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-1XXX | 1000–1999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-2XXX | 2000–2999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-3XXX | 3000–3999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-4XXX | 4000–4999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-5XXX | 5000–5999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-6XXX | 6000–6999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-7XXX | 7000–7999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-8XXX | 8000–8999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-07 | 313-373-9XXX | 9000–9999 | Assigned | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2009-10-06 | 313-759-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-06 | 313-759-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-06 | 313-759-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-06 | 313-759-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-06 | 313-799-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-06 | 313-799-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-06 | 313-799-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-06 | 313-799-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-10-05 | 313-288-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | DETROITZN4 | MI |
| 2009-10-05 | 313-375-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | DETROITZN6 | MI |
| 2009-10-05 | 313-404-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | DETROITZN5 | MI |
| 2009-09-23 | 313-695-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-23 | 313-695-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-23 | 313-695-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-23 | 313-695-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-23 | 313-695-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-23 | 313-695-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN5 | MI |
| 2009-09-14 | 313-375-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-09-14 | 313-375-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | DETROITZN6 | MI |
| 2009-09-11 | 313-355-6XXX | 6000–6999 | Assigned | ONVOY, LLCV - MI | 543C | DETROITZN1 | 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.