NumberResearchRecent thousands-block assignments
0 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, all time — 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 |
|---|---|---|---|---|---|---|---|
| 2026-08-20 | 617-609-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2025-02-07 | 617-781-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DORCHESTER | MA |
| 2024-12-18 | 617-503-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2024-11-11 | 617-881-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEWTON | MA |
| 2024-01-05 | 617-609-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2020-03-26 | 617-297-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DORCHESTER | MA |
| 2020-03-26 | 617-297-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DORCHESTER | MA |
| 2020-03-19 | 617-837-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | QUINCY | MA |
| 2019-09-18 | 617-582-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BROOKLINE | MA |
| 2018-06-28 | 617-764-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SOMERVILLE | MA |
| 2016-10-14 | 617-795-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEWTON | MA |
| 2014-11-21 | 617-297-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DORCHESTER | MA |
| 2014-08-06 | 617-602-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROXBURY | MA |
| 2013-12-06 | 617-637-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2012-12-21 | 617-433-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2012-09-20 | 617-615-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2012-01-18 | 617-637-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2012-01-18 | 617-637-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2011-09-23 | 617-615-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2011-09-23 | 617-615-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2011-09-21 | 617-477-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2011-09-21 | 617-971-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2011-05-18 | 617-639-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | QUINCY | MA |
| 2011-05-18 | 617-639-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | QUINCY | MA |
| 2011-05-18 | 617-639-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | QUINCY | MA |
| 2011-05-17 | 617-615-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2011-05-17 | 617-690-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2011-04-18 | 617-390-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2011-04-18 | 617-390-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2011-04-18 | 617-390-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | JAMAICA PL | MA |
| 2010-10-13 | 617-583-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2010-10-13 | 617-583-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2010-10-13 | 617-583-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2010-10-13 | 617-682-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2010-10-13 | 617-898-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2010-10-13 | 617-898-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2010-08-19 | 617-949-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2010-08-19 | 617-949-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2010-08-19 | 617-949-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2010-08-19 | 617-949-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2010-06-02 | 617-758-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | 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 |
| 2009-07-23 | 617-768-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2009-07-23 | 617-806-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2009-02-18 | 617-955-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2009-02-18 | 617-955-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2008-08-11 | 617-800-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2008-08-11 | 617-800-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | 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.