NumberResearchRecent thousands-block assignments
1 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 617
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 |
|---|---|---|---|---|---|---|---|
| 2010-01-19 | 617-903-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | BRIGHTON | MA |
| 2010-01-19 | 617-942-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | JAMAICA PL | MA |
| 2010-01-19 | 617-942-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | JAMAICA PL | MA |
| 2010-01-07 | 617-600-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | WATERTOWN | MA |
| 2009-12-17 | 617-971-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | JAMAICA PL | MA |
| 2009-12-14 | 617-360-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | HYDE PARK | MA |
| 2009-12-14 | 617-990-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | HYDE PARK | MA |
| 2009-12-10 | 617-419-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOSTON | MA |
| 2009-12-10 | 617-419-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOSTON | MA |
| 2009-12-10 | 617-419-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOSTON | MA |
| 2009-11-23 | 617-238-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | ROXBURY | MA |
| 2009-11-23 | 617-322-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | MILTON | MA |
| 2009-11-23 | 617-326-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | DORCHESTER | MA |
| 2009-11-23 | 617-329-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | WINTHROP | MA |
| 2009-11-23 | 617-415-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | BRIGHTON | MA |
| 2009-11-23 | 617-467-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | NEWTON | MA |
| 2009-11-23 | 617-544-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | EVERETT | MA |
| 2009-11-23 | 617-553-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | JAMAICA PL | MA |
| 2009-11-23 | 617-681-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | CHARLESTN | MA |
| 2009-11-23 | 617-744-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | WATERTOWN | MA |
| 2009-11-23 | 617-758-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | CAMBRIDGE | MA |
| 2009-11-23 | 617-765-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | SO BOSTON | MA |
| 2009-11-23 | 617-804-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | QUINCY | MA |
| 2009-11-23 | 617-804-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | QUINCY | MA |
| 2009-11-23 | 617-819-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | CHELSEA | MA |
| 2009-11-23 | 617-860-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MA | 892D | BROOKLINE | MA |
| 2009-11-23 | 617-874-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | EASTBOSTON | MA |
| 2009-11-23 | 617-941-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | SOMERVILLE | MA |
| 2009-11-23 | 617-993-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MA | 892D | BELMONT | MA |
| 2009-11-04 | 617-419-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | BOSTON | MA |
| 2009-11-04 | 617-419-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | BOSTON | MA |
| 2009-11-04 | 617-440-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SOMERVILLE | MA |
| 2009-11-04 | 617-652-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | ROXBURY | MA |
| 2009-11-04 | 617-701-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SO BOSTON | MA |
| 2009-11-04 | 617-718-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | SOMERVILLE | MA |
| 2009-10-30 | 617-528-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2009-10-30 | 617-902-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2009-10-30 | 617-971-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2009-10-21 | 617-299-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | CAMBRIDGE | MA |
| 2009-10-21 | 617-299-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | CAMBRIDGE | MA |
| 2009-10-21 | 617-299-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | CAMBRIDGE | MA |
| 2009-10-21 | 617-299-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | CAMBRIDGE | MA |
| 2009-10-21 | 617-444-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | CAMBRIDGE | MA |
| 2009-10-02 | 617-455-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | EASTBOSTON | MA |
| 2009-09-28 | 617-751-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | BROOKLINE | MA |
| 2009-09-25 | 617-313-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | MILTON | MA |
| 2009-09-11 | 617-663-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | NEWTON | MA |
| 2009-08-11 | 617-322-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | MILTON | MA |
| 2009-08-11 | 617-433-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | MILTON | MA |
| 2009-08-11 | 617-586-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - MA | 316E | BRIGHTON | MA |
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.