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 |
|---|---|---|---|---|---|---|---|
| 2007-02-28 | 603-343-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DOVER | NH |
| 2007-02-26 | 603-276-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | W LEBANON | NH |
| 2007-02-23 | 603-721-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | MILFORD | NH |
| 2007-01-19 | 603-822-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NH |
| 2007-01-09 | 603-521-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2007-01-04 | 603-545-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CONCORD | NH |
| 2007-01-04 | 603-703-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MANCHESTER | NH |
| 2007-01-04 | 603-727-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LEBANON | NH |
| 2007-01-04 | 603-845-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DERRY | NH |
| 2006-12-21 | 603-259-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | LITTLETON | NH |
| 2006-12-21 | 603-589-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | NASHUA | NH |
| 2006-12-20 | 603-306-0XXX | 0000–0999 | Assigned | FREEDOM RING COMMUNICATIONS, LLC | 8468 | LEBANON | NH |
| 2006-12-08 | 603-577-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHUA | NH |
| 2006-12-08 | 603-864-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHUA | NH |
| 2006-12-06 | 603-325-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NEW BOSTON | NH |
| 2006-12-06 | 603-703-5XXX | 5000–5999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MANCHESTER | NH |
| 2006-12-06 | 603-732-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MILFORD | NH |
| 2006-12-06 | 603-733-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NO CONWAY | NH |
| 2006-12-06 | 603-833-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | ROCHESTER | NH |
| 2006-11-22 | 603-912-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | SALEM | NH |
| 2006-11-20 | 603-277-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | HANOVER | NH |
| 2006-11-20 | 603-336-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | HINSDALE | NH |
| 2006-11-20 | 603-523-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | CANAAN | NH |
| 2006-11-20 | 603-727-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | LEBANON | NH |
| 2006-11-20 | 603-835-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ALSTEAD | NH |
| 2006-11-17 | 603-965-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | DERRY | NH |
| 2006-11-16 | 603-734-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | EPPING | NH |
| 2006-11-16 | 603-841-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | SOMERSWTH | NH |
| 2006-11-16 | 603-856-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | CONCORD | NH |
| 2006-11-16 | 603-856-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | CONCORD | NH |
| 2006-11-16 | 603-935-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MANCHESTER | NH |
| 2006-11-16 | 603-935-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MANCHESTER | NH |
| 2006-11-16 | 603-935-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | MANCHESTER | NH |
| 2006-11-16 | 603-965-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | DERRY | NH |
| 2006-11-16 | 603-965-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | DERRY | NH |
| 2006-11-14 | 603-991-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LITTLETON | NH |
| 2006-11-09 | 603-392-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | WINCHESTER | NH |
| 2006-11-06 | 603-370-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CANDIA | NH |
| 2006-11-06 | 603-545-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CONCORD | NH |
| 2006-11-06 | 603-617-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DOVER | NH |
| 2006-11-06 | 603-617-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DOVER | NH |
| 2006-11-06 | 603-630-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LACONIA | NH |
| 2006-11-06 | 603-667-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LEBANON | NH |
| 2006-11-06 | 603-706-2XXX | 2000–2999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | RAYMOND | NH |
| 2006-11-06 | 603-717-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CONCORD | NH |
| 2006-11-02 | 603-614-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | WCHESTEFLD | NH |
| 2006-11-02 | 603-790-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | W LEBANON | NH |
| 2006-10-27 | 603-291-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | GREENVILLE | NH |
| 2006-10-25 | 603-657-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | MANCHESTER | NH |
| 2006-10-19 | 603-249-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MILFORD | 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.