NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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 248
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 520
NEW CINGULAR WIRELESS PCS, LLC - IL 384
ONVOY, LLCV - MI 332
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 287
METROPCS, INC. 227
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-01-09 248-315-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TROY MI
2022-01-09 248-315-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TROY MI
2021-12-17 248-274-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H OXFORD MI
2021-12-17 248-274-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H OXFORD MI
2021-12-17 248-315-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TROY MI
2021-12-17 248-315-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H TROY MI
2021-12-17 248-315-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H TROY MI
2021-12-17 248-491-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SOUTH LYON MI
2021-12-17 248-491-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SOUTH LYON MI
2021-12-17 248-962-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NORTHVILLE MI
2021-12-17 248-962-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H NORTHVILLE MI
2021-12-13 248-491-5XXX 5000–5999Assigned METROPCS, INC. 5562 SOUTH LYON MI
2021-12-13 248-491-6XXX 6000–6999Assigned METROPCS, INC. 5562 SOUTH LYON MI
2021-11-02 248-319-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J NORTHVILLE MI
2021-11-02 248-834-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LAKE ORION MI
2021-10-20 248-742-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2021-10-20 248-742-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2021-10-20 248-742-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2021-10-05 248-846-2XXX 2000–2999Assigned METROPCS, INC. 5562 HOLLY MI
2021-10-05 248-846-5XXX 5000–5999Assigned METROPCS, INC. 5562 HOLLY MI
2021-10-05 248-846-9XXX 9000–9999Assigned METROPCS, INC. 5562 HOLLY MI
2021-09-27 248-432-4XXX 4000–4999Assigned METROPCS, INC. 5562 W BLOOMFLD MI
2021-09-27 248-973-9XXX 9000–9999Assigned METROPCS, INC. 5562 W BLOOMFLD MI
2021-09-21 248-315-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2021-09-13 248-962-1XXX 1000–1999Assigned COMMIO, LLC 939H NORTHVILLE MI
2021-09-13 248-962-9XXX 9000–9999Assigned COMMIO, LLC 939H NORTHVILLE MI
2021-09-08 248-775-2XXX 2000–2999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MILFDWH LK MI
2021-09-08 248-834-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G LAKE ORION MI
2021-09-07 248-419-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 W BLOOMFLD MI
2021-09-07 248-671-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 W BLOOMFLD MI
2021-09-07 248-671-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 W BLOOMFLD MI
2021-06-28 248-706-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2021-06-28 248-883-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2021-06-07 248-942-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J CLARKSTON MI
2021-05-27 248-274-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J OXFORD MI
2021-05-21 248-883-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J PONTIAC MI
2021-05-18 248-883-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PONTIAC MI
2021-05-17 248-257-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H DRAYTON PL MI
2021-05-17 248-779-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H COMMERCE MI
2021-05-17 248-783-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LAKE ORION MI
2021-05-05 248-419-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D W BLOOMFLD MI
2021-04-23 248-942-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CLARKSTON MI
2021-04-23 248-942-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CLARKSTON MI
2021-04-22 248-389-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-04-22 248-389-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-04-22 248-389-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-04-22 248-389-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-04-22 248-389-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-04-22 248-389-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-04-22 248-389-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI

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.