NumberResearchRecent thousands-block assignments
16 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 385
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 |
|---|---|---|---|---|---|---|---|
| 2009-11-24 | 385-743-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MURRAY | UT |
| 2009-09-14 | 385-204-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PROVO | UT |
| 2009-08-24 | 385-351-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIDVALE | UT |
| 2009-08-24 | 385-351-8XXX | 8000–8999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | MIDVALE | UT |
| 2009-06-30 | 385-204-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PROVO | UT |
| 2009-06-22 | 385-234-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SALT LAKE | UT |
| 2009-06-22 | 385-234-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SALT LAKE | UT |
| 2009-06-22 | 385-234-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SALT LAKE | UT |
| 2009-06-12 | 385-468-0XXX | 0000–0999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-468-9XXX | 9000–9999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-06-12 | 385-743-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | MURRAY | UT |
| 2009-06-12 | 385-743-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | MURRAY | UT |
| 2009-06-12 | 385-743-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | MURRAY | UT |
| 2009-04-23 | 385-322-0XXX | 0000–0999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-1XXX | 1000–1999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-2XXX | 2000–2999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-3XXX | 3000–3999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-4XXX | 4000–4999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-5XXX | 5000–5999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-6XXX | 6000–6999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-7XXX | 7000–7999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-8XXX | 8000–8999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-23 | 385-322-9XXX | 9000–9999 | Assigned | FIRSTDIGITAL TELECOM, LLC - UT | 5727 | SALT LAKE | UT |
| 2009-04-21 | 385-234-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-21 | 385-234-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-0XXX | 0000–0999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
| 2009-04-17 | 385-646-9XXX | 9000–9999 | Assigned | QWEST CORPORATION | 9636 | SALT LAKE | UT |
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.