NumberResearchRecent thousands-block assignments
5 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 240
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 |
|---|---|---|---|---|---|---|---|
| 2008-06-03 | 240-581-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2008-05-30 | 240-294-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2008-05-30 | 240-295-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2008-05-29 | 240-345-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - MD | 281E | ASHTON238 | MD |
| 2008-05-29 | 240-345-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - MD | 281E | ASHTON238 | MD |
| 2008-05-29 | 240-839-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN3 | MD |
| 2008-05-29 | 240-964-0XXX | 0000–0999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-1XXX | 1000–1999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-2XXX | 2000–2999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-3XXX | 3000–3999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-4XXX | 4000–4999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-5XXX | 5000–5999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-6XXX | 6000–6999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-7XXX | 7000–7999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-8XXX | 8000–8999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-29 | 240-964-9XXX | 9000–9999 | Assigned | VERIZON MARYLAND, INC. | 9212 | CUMBERLAND | MD |
| 2008-05-27 | 240-307-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 7228 | EMMITSBURG | MD |
| 2008-05-27 | 240-404-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2008-05-27 | 240-477-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2008-05-27 | 240-477-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2008-05-21 | 240-244-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN16 | MD |
| 2008-05-21 | 240-330-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN2 | MD |
| 2008-05-21 | 240-339-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | WSNG236Z15 | MD |
| 2008-05-21 | 240-419-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | WALDORF | MD |
| 2008-05-21 | 240-456-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | LAUREL236 | MD |
| 2008-05-21 | 240-556-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | WSNG236Z14 | MD |
| 2008-05-21 | 240-558-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN11 | MD |
| 2008-05-21 | 240-624-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | WSNG236Z13 | MD |
| 2008-05-21 | 240-778-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN10 | MD |
| 2008-05-21 | 240-794-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | LXTNPKGRML | MD |
| 2008-05-19 | 240-374-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | LAUREL236 | MD |
| 2008-05-19 | 240-486-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNG236Z14 | MD |
| 2008-05-19 | 240-486-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNG236Z14 | MD |
| 2008-05-19 | 240-755-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | LAUREL238 | MD |
| 2008-05-06 | 240-419-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WALDORF | MD |
| 2008-05-06 | 240-566-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FREDERICK | MD |
| 2008-05-06 | 240-619-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN5 | MD |
| 2008-05-06 | 240-668-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | DAMASCS236 | MD |
| 2008-05-06 | 240-776-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | LA PLATA | MD |
| 2008-05-05 | 240-654-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | GAITHERSBG | MD |
| 2008-05-05 | 240-654-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | GAITHERSBG | MD |
| 2008-04-24 | 240-330-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | WSHNGTNZN2 | MD |
| 2008-04-18 | 240-419-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | WALDORF | MD |
| 2008-04-18 | 240-419-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | WALDORF | MD |
| 2008-04-18 | 240-558-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNGTNZN11 | MD |
| 2008-04-18 | 240-558-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNGTNZN11 | MD |
| 2008-04-10 | 240-479-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN2 | MD |
| 2008-04-10 | 240-479-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN2 | MD |
| 2008-04-09 | 240-776-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA PLATA | MD |
| 2008-04-02 | 240-575-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | FREDERICK | 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.