NumberResearchRecent thousands-block assignments
5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2015-10-28 | 240-781-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2015-10-20 | 240-714-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN4 | MD |
| 2015-10-13 | 240-784-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | MYERSVILLE | MD |
| 2015-10-07 | 240-774-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | LONACONING | MD |
| 2015-10-07 | 240-775-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WESTERNPT | MD |
| 2015-10-06 | 240-816-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | KEEDYSVL | MD |
| 2015-10-02 | 240-763-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | WSNG238Z15 | MD |
| 2015-10-01 | 240-448-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WALDORF | MD |
| 2015-10-01 | 240-806-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF MARYLAND, LLC | 568G | INDIANHEAD | MD |
| 2015-09-30 | 240-623-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN4 | MD |
| 2015-09-28 | 240-288-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | THURMONT | MD |
| 2015-09-28 | 240-609-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | CUMBERLAND | MD |
| 2015-09-24 | 240-661-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | LXTNPKGRML | MD |
| 2015-09-24 | 240-903-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MD | 876D | INDIANHEAD | MD |
| 2015-09-23 | 240-760-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN2 | MD |
| 2015-09-22 | 240-360-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2015-09-17 | 240-474-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2015-09-17 | 240-609-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CUMBERLAND | MD |
| 2015-09-17 | 240-652-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MECHANCSVL | MD |
| 2015-09-16 | 240-660-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNGTNZN10 | MD |
| 2015-09-15 | 240-702-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | GAITHERSBG | MD |
| 2015-09-09 | 240-390-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2015-09-09 | 240-390-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2015-09-09 | 240-513-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | HAGERSTOWN | MD |
| 2015-09-09 | 240-559-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2015-09-09 | 240-559-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2015-09-09 | 240-883-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2015-09-08 | 240-740-0XXX | 0000–0999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-1XXX | 1000–1999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-2XXX | 2000–2999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-3XXX | 3000–3999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-4XXX | 4000–4999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-5XXX | 5000–5999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-6XXX | 6000–6999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-7XXX | 7000–7999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-8XXX | 8000–8999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-08 | 240-740-9XXX | 9000–9999 | Assigned | ATLANTECH ONLINE, INC. - MD | 361H | WSNGTNZN10 | MD |
| 2015-09-03 | 240-641-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN3 | MD |
| 2015-09-02 | 240-474-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | GAITHERSBG | MD |
| 2015-09-01 | 240-707-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | HAGERSTOWN | MD |
| 2015-08-28 | 240-699-6XXX | 6000–6999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BUCKEYSTN | MD |
| 2015-08-28 | 240-699-7XXX | 7000–7999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BUCKEYSTN | MD |
| 2015-08-28 | 240-699-8XXX | 8000–8999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BUCKEYSTN | MD |
| 2015-08-28 | 240-699-9XXX | 9000–9999 | Assigned | VERIZON MARYLAND, INC. | 9212 | BUCKEYSTN | MD |
| 2015-08-27 | 240-556-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | WSNG236Z14 | MD |
| 2015-08-26 | 240-294-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | LAUREL236 | MD |
| 2015-08-24 | 240-970-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNGTNZN12 | MD |
| 2015-08-21 | 240-903-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | INDIANHEAD | MD |
| 2015-08-19 | 240-781-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN2 | MD |
| 2015-08-07 | 240-660-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSNGTNZN10 | MD |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.