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 |
|---|---|---|---|---|---|---|---|
| 2015-08-07 | 240-695-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN5 | MD |
| 2015-08-03 | 240-808-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LEONARDTN | MD |
| 2015-07-31 | 240-808-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | LEONARDTN | MD |
| 2015-07-24 | 240-808-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LEONARDTN | MD |
| 2015-07-20 | 240-617-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | HIGHFIELD | MD |
| 2015-07-20 | 240-641-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN3 | MD |
| 2015-07-20 | 240-641-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN3 | MD |
| 2015-07-16 | 240-929-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSNG236Z14 | MD |
| 2015-07-15 | 240-556-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNG236Z14 | MD |
| 2015-07-15 | 240-558-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | WSNGTNZN11 | MD |
| 2015-07-15 | 240-623-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN4 | MD |
| 2015-07-15 | 240-714-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN4 | MD |
| 2015-07-15 | 240-714-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN4 | MD |
| 2015-07-15 | 240-800-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN2 | MD |
| 2015-07-14 | 240-714-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WSHNGTNZN4 | MD |
| 2015-07-13 | 240-307-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | EMMITSBURG | MD |
| 2015-07-10 | 240-470-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | LAUREL236 | MD |
| 2015-07-10 | 240-713-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | LAUREL236 | MD |
| 2015-07-10 | 240-743-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN2 | MD |
| 2015-07-09 | 240-341-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | BUCKEYSTN | MD |
| 2015-07-09 | 240-609-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | 7228 | CUMBERLAND | MD |
| 2015-07-08 | 240-339-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | WSNG236Z15 | MD |
| 2015-07-08 | 240-513-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | HAGERSTOWN | MD |
| 2015-06-30 | 240-666-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | NANJEMOY | MD |
| 2015-06-26 | 240-900-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN4 | MD |
| 2015-06-26 | 240-900-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN4 | MD |
| 2015-06-26 | 240-900-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN4 | MD |
| 2015-06-26 | 240-900-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN4 | MD |
| 2015-06-26 | 240-900-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN4 | MD |
| 2015-06-26 | 240-900-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN4 | MD |
| 2015-06-26 | 240-900-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | WSHNGTNZN4 | MD |
| 2015-06-23 | 240-270-9XXX | 9000–9999 | Assigned | BALTIMORE-WASHINGTON TELEPHONE (BWT) | 8697 | WALDORF | MD |
| 2015-06-23 | 240-490-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | MIDDLETOWN | MD |
| 2015-06-22 | 240-270-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | WALDORF | MD |
| 2015-06-22 | 240-517-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL238 | MD |
| 2015-06-22 | 240-517-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL238 | MD |
| 2015-06-22 | 240-517-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL238 | MD |
| 2015-06-22 | 240-802-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | WSHNGTNZN2 | MD |
| 2015-06-15 | 240-474-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2015-06-15 | 240-474-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2015-06-15 | 240-474-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GAITHERSBG | MD |
| 2015-06-09 | 240-556-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | WSNG236Z14 | MD |
| 2015-06-09 | 240-722-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2015-06-09 | 240-722-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2015-06-09 | 240-938-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ASHTON236 | MD |
| 2015-06-08 | 240-343-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | HANCOCK | MD |
| 2015-06-08 | 240-562-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GAITHERSBG | MD |
| 2015-06-08 | 240-562-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GAITHERSBG | MD |
| 2015-06-08 | 240-562-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GAITHERSBG | MD |
| 2015-06-08 | 240-562-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GAITHERSBG | 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.