NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
2007-07-03 248-904-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2007-06-26 248-786-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-06-26 248-786-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-06-20 248-796-6XXX 6000–6999Assigned MICHIGAN BELL TEL CO 9323 SOUTHFIELD MI
2007-06-11 248-254-2XXX 2000–2999Assigned METROPCS, INC. 5562 W BLOOMFLD MI
2007-06-11 248-904-3XXX 3000–3999Assigned METROPCS, INC. 5562 PONTIAC MI
2007-06-11 248-904-4XXX 4000–4999Assigned METROPCS, INC. 5562 PONTIAC MI
2007-06-08 248-599-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J DRAYTON PL MI
2007-06-07 248-630-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 PONTIAC MI
2007-06-06 248-312-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2007-06-06 248-312-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2007-05-25 248-469-2XXX 2000–2999Assigned METROPCS, INC. 5562 SOUTHFIELD MI
2007-05-25 248-469-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTHFIELD MI
2007-05-21 248-499-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PONTIAC MI
2007-05-14 248-912-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 NORTHVILLE MI
2007-05-11 248-228-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2007-05-11 248-667-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SOUTH LYON MI
2007-05-11 248-824-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-05-11 248-824-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-05-11 248-824-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-05-11 248-824-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-05-11 248-824-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-05-11 248-828-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-05-11 248-928-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TROY MI
2007-05-11 248-996-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2007-05-07 248-313-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C WALLEDLAKE MI
2007-05-07 248-667-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C SOUTH LYON MI
2007-05-03 248-270-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 AUBURN HTS MI
2007-05-02 248-247-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C TROY MI
2007-05-02 248-247-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C TROY MI
2007-05-02 248-247-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C TROY MI
2007-05-02 248-250-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C TROY MI
2007-05-02 248-434-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C TROY MI
2007-05-02 248-562-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-687-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C TROY MI
2007-05-02 248-702-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-747-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-747-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-747-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-747-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-747-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-757-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-757-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2007-05-02 248-786-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C TROY MI
2007-05-02 248-823-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C TROY MI
2007-04-25 248-876-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 FARMINGTON MI
2007-04-25 248-904-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 PONTIAC MI
2007-04-23 248-327-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SOUTHFIELD MI
2007-04-23 248-327-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SOUTHFIELD MI
2007-04-20 248-381-6XXX 6000–6999Assigned MICHIGAN BELL TEL CO 9323 FARMINGTON MI

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.