NumberResearchRecent thousands-block assignments
17 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 443
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 |
|---|---|---|---|---|---|---|---|
| 2025-09-17 | 443-495-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PARKVILLE | MD |
| 2025-09-12 | 443-494-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MILLERSVL | MD |
| 2025-09-04 | 443-293-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | WESTMINSTR | MD |
| 2025-09-04 | 443-296-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | WATERLO238 | MD |
| 2025-09-04 | 443-715-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MD | 876D | NORTH EAST | MD |
| 2025-09-04 | 443-781-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MD | 876D | ARGRGBSNIS | MD |
| 2025-09-03 | 443-460-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ESSEX | MD |
| 2025-09-03 | 443-505-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ESSEX | MD |
| 2025-08-13 | 443-390-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | CHURCHVL | MD |
| 2025-08-12 | 443-704-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ODENTON | MD |
| 2025-07-22 | 443-242-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | SPARROWSPT | MD |
| 2025-07-16 | 443-420-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ELLICOTTCY | MD |
| 2025-07-03 | 443-502-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HAVREGRACE | MD |
| 2025-07-01 | 443-594-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | SPARROWSPT | MD |
| 2025-07-01 | 443-706-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CRISFIELD | MD |
| 2025-06-26 | 443-303-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2025-06-26 | 443-303-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2025-06-26 | 443-403-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | ABERDEEN | MD |
| 2025-06-16 | 443-299-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | FALLSTON | MD |
| 2025-05-20 | 443-590-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | REISTERSTN | MD |
| 2025-05-14 | 443-715-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | NORTH EAST | MD |
| 2025-05-02 | 443-431-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RANDALLSTN | MD |
| 2025-04-30 | 443-315-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CATONSVL | MD |
| 2025-04-30 | 443-598-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHERWD FOR | MD |
| 2025-04-29 | 443-316-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WOODLAWN | MD |
| 2025-04-23 | 443-501-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PIKESVILLE | MD |
| 2025-04-22 | 443-787-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | BEL AIR | MD |
| 2025-04-21 | 443-505-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ESSEX | MD |
| 2025-04-21 | 443-505-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ESSEX | MD |
| 2025-04-16 | 443-597-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | SEVERNA PK | MD |
| 2025-04-09 | 443-625-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | FORK | MD |
| 2025-04-08 | 443-298-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EASTON | MD |
| 2025-04-08 | 443-313-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FORK | MD |
| 2025-04-08 | 443-490-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EDGEWOOD | MD |
| 2025-04-08 | 443-971-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TANEYTOWN | MD |
| 2025-04-03 | 443-667-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | DELMAR | MD |
| 2025-03-27 | 443-371-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | BEL AIR | MD |
| 2025-03-27 | 443-599-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2025-03-27 | 443-599-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERN | MD |
| 2025-03-25 | 443-517-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GLENBURNIE | MD |
| 2025-03-25 | 443-517-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | GLENBURNIE | MD |
| 2025-03-24 | 443-597-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERNA PK | MD |
| 2025-03-24 | 443-597-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SEVERNA PK | MD |
| 2025-03-13 | 443-816-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MD | 876D | SEVERNA PK | MD |
| 2025-03-12 | 443-439-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | TRAPPE | MD |
| 2025-03-10 | 443-212-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SPARKSGLNC | MD |
| 2025-02-20 | 443-471-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PIKESVILLE | MD |
| 2025-01-29 | 443-304-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | ARBUTUS | MD |
| 2025-01-27 | 443-265-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF MARYLAND, LLC | 568G | FORK | MD |
| 2025-01-15 | 443-780-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WOODLAWN | 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.