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 |
|---|---|---|---|---|---|---|---|
| 2009-11-19 | 603-995-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | HENNIKER | NH |
| 2009-11-18 | 603-705-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | SALISBURY | NH |
| 2009-11-18 | 603-840-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | EPSOM | NH |
| 2009-11-18 | 603-877-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | NEW LONDON | NH |
| 2009-11-18 | 603-902-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | SUTTON | NH |
| 2009-11-18 | 603-961-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | CHICHESTER | NH |
| 2009-11-18 | 603-975-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | BOSCAWEN | NH |
| 2009-11-18 | 603-977-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | ANDOVER | NH |
| 2009-11-12 | 603-435-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | PITTSFIELD | NH |
| 2009-11-12 | 603-654-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | WILTON | NH |
| 2009-11-12 | 603-746-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | CONTOOCOOK | NH |
| 2009-11-02 | 603-813-2XXX | 2000–2999 | Assigned | IDT AMERICA, CORP. - NH | 314C | CTRBARNSTE | NH |
| 2009-11-02 | 603-855-2XXX | 2000–2999 | Assigned | IDT AMERICA, CORP. - NH | 314C | ALTON | NH |
| 2009-11-02 | 603-872-2XXX | 2000–2999 | Assigned | IDT AMERICA, CORP. - NH | 314C | GLNTNIRWRS | NH |
| 2009-11-02 | 603-906-2XXX | 2000–2999 | Assigned | IDT AMERICA, CORP. - NH | 314C | BARNSTEAD | NH |
| 2009-10-30 | 603-290-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CONCORD | NH |
| 2009-10-23 | 603-701-2XXX | 2000–2999 | Assigned | IDT AMERICA, CORP. - NH | 314C | NEW DURHAM | NH |
| 2009-10-16 | 603-775-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | EXETER | NH |
| 2009-09-17 | 603-531-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PORTSMOUTH | NH |
| 2009-09-15 | 603-218-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | MANCHESTER | NH |
| 2009-09-02 | 603-833-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | ROCHESTER | NH |
| 2009-08-27 | 603-583-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | EXETER | NH |
| 2009-08-24 | 603-948-1XXX | 1000–1999 | Assigned | IDT AMERICA, CORP. - NH | 314C | ROCHESTER | NH |
| 2009-08-11 | 603-418-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | EXETER | NH |
| 2009-08-04 | 603-660-4XXX | 4000–4999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | GOFFSTOWN | NH |
| 2009-08-03 | 603-718-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHUA | NH |
| 2009-07-08 | 603-921-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2009-07-02 | 603-425-9XXX | 9000–9999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | DERRY | NH |
| 2009-07-02 | 603-717-5XXX | 5000–5999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | CONCORD | NH |
| 2009-07-02 | 603-957-5XXX | 5000–5999 | Assigned | FREEDOM RING COMMUNICATIONS, LLC | 8468 | PORTSMOUTH | NH |
| 2009-06-04 | 603-348-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NOWOODSTOK | NH |
| 2009-06-04 | 603-957-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | PORTSMOUTH | NH |
| 2009-05-27 | 603-923-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROCHESTER | NH |
| 2009-05-22 | 603-267-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | BELMONT | NH |
| 2009-05-11 | 603-204-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHUA | NH |
| 2009-05-11 | 603-718-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | NASHUA | NH |
| 2009-05-06 | 603-663-0XXX | 0000–0999 | Assigned | OTEL TELEKOM, INC. - NH | 9827 | MANCHESTER | NH |
| 2009-05-05 | 603-583-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | EXETER | NH |
| 2009-04-02 | 603-716-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MANCHESTER | NH |
| 2009-03-19 | 603-836-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MANCHESTER | NH |
| 2009-03-04 | 603-331-1XXX | 1000–1999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | COLEBROOK | NH |
| 2009-03-04 | 603-631-5XXX | 5000–5999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LANCASTER | NH |
| 2009-03-03 | 603-714-3XXX | 3000–3999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | BEDFORD | NH |
| 2009-03-03 | 603-716-0XXX | 0000–0999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | MANCHESTER | NH |
| 2009-03-03 | 603-833-7XXX | 7000–7999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | ROCHESTER | NH |
| 2009-03-03 | 603-903-5XXX | 5000–5999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | KEENE | NH |
| 2009-02-20 | 603-420-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MERRIMACK | NH |
| 2009-02-06 | 603-736-6XXX | 6000–6999 | Assigned | FREEDOM RING COMMUNICATIONS, LLC | 8468 | EPSOM | NH |
| 2009-02-05 | 603-998-6XXX | 6000–6999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | LACONIA | NH |
| 2009-01-28 | 603-943-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | NASHUA | 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.