NumberResearchRecent thousands-block assignments
0 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, all time — NPA 210
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-10-22 | 210-936-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2018-10-22 | 210-936-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2017-09-13 | 210-686-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2016-04-21 | 210-634-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2015-03-02 | 210-951-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2015-01-28 | 210-596-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2014-06-10 | 210-751-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2013-03-11 | 210-585-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-10-07 | 210-201-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-24 | 210-784-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-24 | 210-784-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-24 | 210-784-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-24 | 210-784-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-24 | 210-784-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-766-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
| 2011-05-11 | 210-768-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | SANANTONIO | TX |
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.