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 |
|---|---|---|---|---|---|---|---|
| 2025-06-10 | 227-284-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-06-10 | 227-284-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-06-10 | 227-284-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-06-10 | 227-284-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2025-06-06 | 227-283-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-06-06 | 227-283-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-06-06 | 227-283-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-06-06 | 227-283-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-06-06 | 227-283-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-06-06 | 227-283-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-06-06 | 227-283-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-06-06 | 227-283-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-28 | 227-282-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2025-05-28 | 227-282-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2025-05-27 | 227-281-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2025-05-27 | 227-281-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2025-05-21 | 227-274-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-274-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-274-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-274-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-274-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-274-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-274-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-274-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-280-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-21 | 227-280-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN10 | MD |
| 2025-05-20 | 227-279-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-20 | 227-279-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-05-14 | 227-278-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WALDORF | MD |
| 2025-05-14 | 227-278-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WALDORF | MD |
| 2025-05-14 | 227-278-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WALDORF | MD |
| 2025-05-09 | 227-268-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LAUREL236 | MD |
| 2025-05-08 | 227-239-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HAGERSTOWN | MD |
| 2025-05-02 | 227-258-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | GAITHERSBG | MD |
| 2025-05-02 | 227-277-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | GAITHERSBG | MD |
| 2025-05-02 | 227-277-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | GAITHERSBG | MD |
| 2025-04-17 | 227-267-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MYERSVILLE | MD |
| 2025-04-16 | 227-222-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN16 | MD |
| 2025-04-16 | 227-223-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | FREDERICK | MD |
| 2025-04-16 | 227-223-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | FREDERICK | MD |
| 2025-04-16 | 227-257-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | WSNG236Z14 | MD |
| 2025-04-16 | 227-276-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | 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.