NumberResearchRecent thousands-block assignments
9 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 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 |
|---|---|---|---|---|---|---|---|
| 2025-02-06 | 603-426-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DERRY | NH |
| 2025-01-28 | 603-751-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | PELHAM | NH |
| 2025-01-24 | 603-933-5XXX | 5000–5999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | GREENFIELD | NH |
| 2025-01-15 | 603-350-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MILTON | NH |
| 2025-01-15 | 603-409-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LACONIA | NH |
| 2025-01-15 | 603-741-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEW BOSTON | NH |
| 2025-01-15 | 603-775-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EXETER | NH |
| 2025-01-15 | 603-861-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TAMWORTH | NH |
| 2025-01-10 | 603-272-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NH | 637E | PIERMONT | NH |
| 2025-01-10 | 603-884-1XXX | 1000–1999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2025-01-10 | 603-916-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NH | 637E | MEREDITH | NH |
| 2025-01-06 | 603-375-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NH | 637E | ASHLAND | NH |
| 2025-01-06 | 603-850-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NH | 637E | LISBON | NH |
| 2024-12-24 | 603-378-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NH | 637E | PLAISTOW | NH |
| 2024-12-23 | 603-896-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | SALEM | NH |
| 2024-12-19 | 603-859-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NH | 637E | NEW DURHAM | NH |
| 2024-12-09 | 603-775-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | EXETER | NH |
| 2024-12-03 | 603-592-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SPOFFORD | NH |
| 2024-12-03 | 603-763-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUNAPEE | NH |
| 2024-12-03 | 603-822-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ROCHESTER | NH |
| 2024-12-03 | 603-896-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SALEM | NH |
| 2024-11-15 | 603-699-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASHUA | NH |
| 2024-11-13 | 603-439-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | KEENE | NH |
| 2024-11-13 | 603-721-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MILFORD | NH |
| 2024-11-12 | 603-804-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DOVER | NH |
| 2024-11-08 | 603-212-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SALEM | NH |
| 2024-10-24 | 603-351-7XXX | 7000–7999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | GOFFSTOWN | NH |
| 2024-10-24 | 603-616-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NH | 637E | LITTLETON | NH |
| 2024-10-21 | 603-418-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | EXETER | NH |
| 2024-10-21 | 603-857-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NH | 637E | SUNCOOK | NH |
| 2024-10-17 | 603-342-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BERLIN | NH |
| 2024-10-17 | 603-712-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PIKE | NH |
| 2024-10-17 | 603-996-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PLYMOUTH | NH |
| 2024-10-15 | 603-799-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MANCHESTER | NH |
| 2024-10-15 | 603-896-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SALEM | NH |
| 2024-10-07 | 603-805-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH | 927H | CONCORD | NH |
| 2024-09-30 | 603-884-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2024-09-27 | 603-915-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NH | 637E | GORHAM | NH |
| 2024-09-24 | 603-698-5XXX | 5000–5999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MANCHESTER | NH |
| 2024-09-24 | 603-805-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CONCORD | NH |
| 2024-09-19 | 603-788-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LANCASTER | NH |
| 2024-09-19 | 603-857-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | SUNCOOK | NH |
| 2024-09-12 | 603-259-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LITTLETON | NH |
| 2024-09-12 | 603-390-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JEFFERSON | NH |
| 2024-09-12 | 603-613-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COLEBROOK | NH |
| 2024-09-05 | 603-900-1XXX | 1000–1999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NEWPORT | NH |
| 2024-09-04 | 603-604-4XXX | 4000–4999 | Assigned | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | 5113 | RYE BEACH | NH |
| 2024-08-30 | 603-426-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DERRY | NH |
| 2024-08-20 | 603-416-5XXX | 5000–5999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | RAYMOND | NH |
| 2024-08-15 | 603-453-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | HAMPSTEAD | NH |
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.