NumberResearchRecent thousands-block assignments
6 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 283
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 |
|---|---|---|---|---|---|---|---|
| 2025-12-16 | 283-238-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-12-16 | 283-238-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-12-03 | 283-231-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HAMILTON | OH |
| 2025-12-03 | 283-231-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HAMILTON | OH |
| 2025-10-15 | 283-237-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - OH | 7532 | CINCINNATI | OH |
| 2025-09-25 | 283-222-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-09-25 | 283-237-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-09-25 | 283-237-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-09-25 | 283-333-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-08-20 | 283-210-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MASON | OH |
| 2025-08-20 | 283-237-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-08-20 | 283-237-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-08-20 | 283-237-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-08-20 | 283-237-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-07-30 | 283-210-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MASON | OH |
| 2025-07-30 | 283-235-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-07-25 | 283-235-9XXX | 9000–9999 | Assigned | WAVENATION, LLC | 700J | CINCINNATI | OH |
| 2025-07-15 | 283-232-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LEBANON | OH |
| 2025-07-15 | 283-777-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WAYNESVL | OH |
| 2025-07-02 | 283-212-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HAMILTON | OH |
| 2025-07-01 | 283-234-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CLERMONT | OH |
| 2025-06-26 | 283-226-2XXX | 2000–2999 | Assigned | ONVOY, LLC - OH | 464C | TRENTON | OH |
| 2025-06-04 | 283-235-7XXX | 7000–7999 | Assigned | NUSO, LLC | 732J | CINCINNATI | OH |
| 2025-06-04 | 283-235-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | CINCINNATI | OH |
| 2025-05-28 | 283-235-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
| 2025-05-28 | 283-235-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
| 2025-05-28 | 283-235-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
| 2025-05-28 | 283-235-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
| 2025-05-28 | 283-235-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CINCINNATI | OH |
| 2025-04-24 | 283-217-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | LTL MIAMI | OH |
| 2025-04-24 | 283-224-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF OHIO, LLC - OH | 284F | CINCINNATI | OH |
| 2025-04-18 | 283-217-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LTL MIAMI | OH |
| 2025-04-18 | 283-217-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LTL MIAMI | OH |
| 2025-04-15 | 283-232-1XXX | 1000–1999 | Assigned | ONVOY, LLC - OH | 464C | LEBANON | OH |
| 2025-04-03 | 283-218-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CLERMONT | OH |
| 2025-04-03 | 283-218-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CLERMONT | OH |
| 2025-04-03 | 283-230-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-04-03 | 283-230-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-04-03 | 283-230-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CINCINNATI | OH |
| 2025-04-03 | 283-234-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CLERMONT | OH |
| 2025-03-19 | 283-202-7XXX | 7000–7999 | Assigned | ONVOY, LLC - OH | 464C | MORROW | OH |
| 2025-03-19 | 283-207-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OH | 464C | SHANDON | OH |
| 2025-03-19 | 283-208-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OH | 464C | HARRISON | OH |
| 2025-03-19 | 283-226-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OH | 464C | TRENTON | OH |
| 2025-02-05 | 283-202-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OH | 464C | MORROW | OH |
| 2025-02-05 | 283-208-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OH | 464C | HARRISON | OH |
| 2025-02-05 | 283-232-0XXX | 0000–0999 | Assigned | ONVOY, LLC - OH | 464C | LEBANON | OH |
| 2025-01-28 | 283-231-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HAMILTON | OH |
| 2025-01-28 | 283-231-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HAMILTON | OH |
| 2025-01-14 | 283-226-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TRENTON | OH |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.