NumberResearchRecent thousands-block assignments
9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 603
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 |
|---|---|---|---|---|---|---|---|
| 2025-11-17 | 603-804-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DOVER | NH |
| 2025-11-06 | 603-317-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | MILAN | NH |
| 2025-11-06 | 603-951-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | MILAN | NH |
| 2025-11-03 | 603-919-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROCHESTER | NH |
| 2025-10-30 | 603-853-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WOODSVILLE | NH |
| 2025-10-24 | 603-884-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2025-10-17 | 603-850-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LISBON | NH |
| 2025-10-07 | 603-597-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LYME | NH |
| 2025-10-03 | 603-710-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WASHINGTON | NH |
| 2025-09-17 | 603-452-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CONWAY | NH |
| 2025-09-17 | 603-813-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | CTRBARNSTE | NH |
| 2025-09-15 | 603-884-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASHUA | NH |
| 2025-09-12 | 603-861-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TAMWORTH | NH |
| 2025-09-10 | 603-214-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ERROL | NH |
| 2025-09-10 | 603-215-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BERLIN | NH |
| 2025-09-10 | 603-282-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CANAAN | NH |
| 2025-09-10 | 603-408-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BERLIN | NH |
| 2025-09-10 | 603-420-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MERRIMACK | NH |
| 2025-09-10 | 603-468-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SEABROOK | NH |
| 2025-09-10 | 603-687-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JACKSON | NH |
| 2025-09-10 | 603-701-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | NEW DURHAM | NH |
| 2025-09-10 | 603-754-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LANCASTER | NH |
| 2025-09-03 | 603-280-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | BARRINGTON | NH |
| 2025-09-03 | 603-460-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | DEERFIELD | NH |
| 2025-08-28 | 603-481-5XXX | 5000–5999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | PLYMOUTH | NH |
| 2025-08-28 | 603-571-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DERRY | NH |
| 2025-08-19 | 603-928-1XXX | 1000–1999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | SUNCOOK | NH |
| 2025-08-13 | 603-815-7XXX | 7000–7999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DURHAM | NH |
| 2025-08-07 | 603-300-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHESTER | NH |
| 2025-08-07 | 603-410-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CONCORD | NH |
| 2025-08-07 | 603-676-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HANOVER | NH |
| 2025-08-06 | 603-449-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MILAN | NH |
| 2025-08-06 | 603-460-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DEERFIELD | NH |
| 2025-08-06 | 603-488-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BEDFORD | NH |
| 2025-08-06 | 603-737-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LACONIA | NH |
| 2025-08-06 | 603-763-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUNAPEE | NH |
| 2025-07-28 | 603-465-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HOLLIS | NH |
| 2025-07-28 | 603-467-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - NH | 8299 | MANCHESTER | NH |
| 2025-07-17 | 603-408-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BERLIN | NH |
| 2025-07-01 | 603-712-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PIKE | NH |
| 2025-07-01 | 603-755-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | FARMINGTON | NH |
| 2025-07-01 | 603-779-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PLYMOUTH | NH |
| 2025-07-01 | 603-941-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | WOLFEBORO | NH |
| 2025-06-30 | 603-613-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COLEBROOK | NH |
| 2025-06-30 | 603-734-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EPPING | NH |
| 2025-06-30 | 603-761-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LITTLETON | NH |
| 2025-06-17 | 603-269-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CTRBARNSTE | NH |
| 2025-06-17 | 603-364-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GLNTNIRWRS | NH |
| 2025-06-17 | 603-428-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HENNIKER | NH |
| 2025-06-17 | 603-465-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HOLLIS | NH |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.