NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 414
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-08-28 | 414-262-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2023-08-28 | 414-381-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2023-08-28 | 414-381-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2022-08-29 | 414-381-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2022-08-26 | 414-742-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2022-08-26 | 414-742-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2022-08-26 | 414-742-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2022-08-26 | 414-742-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2022-01-20 | 414-317-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-20 | 414-317-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-16 | 414-338-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2022-01-16 | 414-338-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-275-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-08-13 | 414-509-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-11 | 414-808-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-11 | 414-808-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-11 | 414-808-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-11 | 414-808-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-11 | 414-808-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-11 | 414-808-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-08 | 414-229-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-08 | 414-229-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-08 | 414-629-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-08 | 414-629-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-08 | 414-930-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-06-08 | 414-930-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-05-28 | 414-206-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2015-05-28 | 414-206-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2015-05-28 | 414-206-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2015-05-28 | 414-928-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN4 | WI |
| 2015-05-14 | 414-629-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-05-14 | 414-629-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
| 2015-05-14 | 414-629-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MILWAUKZN1 | WI |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.