NumberResearchRecent thousands-block assignments
25 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 475
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 |
|---|---|---|---|---|---|---|---|
| 2024-08-27 | 475-372-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | NEW HAVEN | CT |
| 2024-08-27 | 475-372-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | NEW HAVEN | CT |
| 2024-08-22 | 475-340-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 539F | OLDGRNWICH | CT |
| 2024-08-22 | 475-363-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 539F | WESTPORT | CT |
| 2024-08-21 | 475-203-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CT | 639C | WALLINGFD | CT |
| 2024-08-15 | 475-370-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | DANBURY | CT |
| 2024-08-15 | 475-370-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | DANBURY | CT |
| 2024-08-06 | 475-366-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | ANSONIDRBY | CT |
| 2024-07-16 | 475-350-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | STAMFORD | CT |
| 2024-07-05 | 475-354-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERBURY | CT |
| 2024-07-03 | 475-367-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CT | 639C | BYRAM | CT |
| 2024-07-03 | 475-500-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CT | 639C | GREENWICH | CT |
| 2024-07-01 | 475-368-1XXX | 1000–1999 | Assigned | CSC WIRELESS, LLC | 425J | DARIEN | CT |
| 2024-07-01 | 475-368-8XXX | 8000–8999 | Assigned | CSC WIRELESS, LLC | 425J | DARIEN | CT |
| 2024-06-28 | 475-324-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | TRUMBULL | CT |
| 2024-06-28 | 475-346-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | STAMFORD | CT |
| 2024-06-28 | 475-346-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | STAMFORD | CT |
| 2024-06-28 | 475-346-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | STAMFORD | CT |
| 2024-06-28 | 475-346-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | STAMFORD | CT |
| 2024-06-28 | 475-366-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | ANSONIDRBY | CT |
| 2024-06-28 | 475-366-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | ANSONIDRBY | CT |
| 2024-06-28 | 475-366-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | ANSONIDRBY | CT |
| 2024-06-21 | 475-312-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CT | 639C | BRIDGEPORT | CT |
| 2024-06-21 | 475-366-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CT | 639C | ANSONIDRBY | CT |
| 2024-06-21 | 475-366-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CT | 639C | ANSONIDRBY | CT |
| 2024-06-21 | 475-369-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CT | 639C | HUNTINGTON | CT |
| 2024-06-21 | 475-373-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CT | 639C | BRIDGEPORT | CT |
| 2024-06-21 | 475-373-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CT | 639C | BRIDGEPORT | CT |
| 2024-06-21 | 475-373-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CT | 639C | BRIDGEPORT | CT |
| 2024-06-21 | 475-673-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CT | 639C | NORWALK | CT |
| 2024-06-18 | 475-254-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CT | 639C | NEW HAVEN | CT |
| 2024-06-18 | 475-324-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CT | 639C | TRUMBULL | CT |
| 2024-06-18 | 475-324-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CT | 639C | TRUMBULL | CT |
| 2024-06-18 | 475-372-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CT | 639C | NEW HAVEN | CT |
| 2024-06-18 | 475-372-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CT | 639C | NEW HAVEN | CT |
| 2024-06-11 | 475-335-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CT | 639C | GREENWICH | CT |
| 2024-06-08 | 475-370-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | DANBURY | CT |
| 2024-06-07 | 475-203-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CT | 639C | WALLINGFD | CT |
| 2024-06-07 | 475-203-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CT | 639C | WALLINGFD | CT |
| 2024-06-07 | 475-346-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CT | 639C | STAMFORD | CT |
| 2024-05-29 | 475-365-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | NEW HAVEN | CT |
| 2024-05-29 | 475-367-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CT | 639C | BYRAM | CT |
| 2024-05-20 | 475-370-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DANBURY | CT |
| 2024-05-20 | 475-371-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | NEW CANAAN | CT |
| 2024-05-17 | 475-335-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | GREENWICH | CT |
| 2024-05-17 | 475-365-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | NEW HAVEN | CT |
| 2024-05-15 | 475-344-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRIDGEPORT | CT |
| 2024-05-15 | 475-349-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRIDGEPORT | CT |
| 2024-05-15 | 475-365-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEW HAVEN | CT |
| 2024-05-15 | 475-365-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEW HAVEN | CT |
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.