NumberResearchRecent thousands-block assignments
4 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 414
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 |
|---|---|---|---|---|---|---|---|
| 2025-09-08 | 414-506-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILWAUKZN1 | WI |
| 2025-09-03 | 414-361-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN1 | WI |
| 2025-09-03 | 414-361-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN1 | WI |
| 2025-09-03 | 414-361-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN1 | WI |
| 2025-09-03 | 414-361-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN1 | WI |
| 2025-09-03 | 414-392-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN4 | WI |
| 2025-07-14 | 414-300-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | MILWAUKZN1 | WI |
| 2025-07-14 | 414-300-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | MILWAUKZN1 | WI |
| 2025-06-09 | 414-424-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MILWAUKZN1 | WI |
| 2025-06-09 | 414-424-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MILWAUKZN1 | WI |
| 2025-06-09 | 414-424-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MILWAUKZN1 | WI |
| 2025-06-09 | 414-424-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MILWAUKZN1 | WI |
| 2025-06-09 | 414-424-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MILWAUKZN1 | WI |
| 2025-06-09 | 414-451-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MILWAUKZN1 | WI |
| 2025-04-15 | 414-450-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN4 | WI |
| 2025-04-15 | 414-500-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN3 | WI |
| 2025-04-08 | 414-374-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN1 | WI |
| 2025-03-19 | 414-451-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN1 | WI |
| 2025-03-19 | 414-451-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN1 | WI |
| 2025-03-19 | 414-451-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WI | 225C | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-428-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-473-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
| 2025-03-07 | 414-474-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | MILWAUKZN1 | WI |
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.