NumberResearchRecent thousands-block assignments
0 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, all time — NPA 913
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-07-26 | 913-942-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-07-26 | 913-942-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-07-26 | 913-942-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-07-26 | 913-942-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-07-26 | 913-942-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2016-05-03 | 913-373-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2015-04-01 | 913-296-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2013-08-19 | 913-955-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | BONNER SPG | KS |
| 2011-05-03 | 913-439-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2010-11-11 | 913-578-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | LEAVENWTH | KS |
| 2009-12-10 | 913-674-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | ATCHISON | KS |
| 2008-05-05 | 913-827-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2008-05-01 | 913-667-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | BONNER SPG | KS |
| 2007-05-17 | 913-945-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2007-05-17 | 913-945-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2007-05-17 | 913-945-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2007-05-17 | 913-945-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
| 2007-05-17 | 913-945-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL | 9533 | KANSASCITY | KS |
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.