NumberResearchRecent thousands-block assignments
62 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 227
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 |
|---|---|---|---|---|---|---|---|
| 2025-02-13 | 227-222-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN16 | MD |
| 2025-02-13 | 227-240-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN11 | MD |
| 2025-02-13 | 227-260-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | WSNG238Z15 | MD |
| 2025-02-13 | 227-263-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | WALDORF | MD |
| 2025-02-13 | 227-263-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | WALDORF | MD |
| 2025-02-13 | 227-997-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN2 | MD |
| 2025-02-06 | 227-239-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | HAGERSTOWN | MD |
| 2025-02-06 | 227-258-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | GAITHERSBG | MD |
| 2025-02-06 | 227-272-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | OAKLAND | MD |
| 2025-02-06 | 227-800-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | FREDERICK | MD |
| 2025-01-27 | 227-772-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WSHNGTNZN4 | MD |
| 2025-01-27 | 227-772-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WSHNGTNZN4 | MD |
| 2025-01-27 | 227-772-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WSHNGTNZN4 | MD |
| 2025-01-22 | 227-268-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-01-22 | 227-268-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-01-22 | 227-268-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-01-22 | 227-268-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-01-22 | 227-268-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-01-22 | 227-268-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-01-15 | 227-263-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WALDORF | MD |
| 2025-01-15 | 227-263-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WALDORF | MD |
| 2025-01-15 | 227-263-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WALDORF | MD |
| 2025-01-14 | 227-263-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WALDORF | MD |
| 2025-01-14 | 227-264-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-01-14 | 227-264-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-01-14 | 227-264-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-01-14 | 227-264-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-01-14 | 227-264-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-01-14 | 227-271-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-01-14 | 227-271-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-01-14 | 227-334-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | KEEDYSVL | MD |
| 2025-01-10 | 227-270-9XXX | 9000–9999 | Assigned | AT&T - LOCAL | 7421 | MOUNT AIRY | MD |
| 2025-01-09 | 227-800-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2025-01-09 | 227-800-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FREDERICK | MD |
| 2025-01-08 | 227-264-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN10 | MD |
| 2025-01-08 | 227-268-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | LAUREL236 | MD |
| 2025-01-08 | 227-269-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN5 | MD |
| 2025-01-08 | 227-269-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN5 | MD |
| 2025-01-08 | 227-269-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN5 | MD |
| 2025-01-08 | 227-727-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN6 | MD |
| 2025-01-03 | 227-255-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN5 | MD |
| 2024-12-31 | 227-259-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2024-12-31 | 227-259-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2024-12-31 | 227-259-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2024-12-31 | 227-259-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2024-12-31 | 227-263-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | WALDORF | MD |
| 2024-12-31 | 227-263-9XXX | 9000–9999 | Assigned | NUSO, LLC | 732J | WALDORF | MD |
| 2024-12-30 | 227-265-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN3 | MD |
| 2024-12-30 | 227-265-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN3 | MD |
| 2024-12-30 | 227-265-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSHNGTNZN3 | MD |
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.