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
2009-01-30 248-677-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2009-01-30 248-677-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2009-01-30 248-850-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2009-01-21 248-686-5XXX 5000–5999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L BIRMINGHAM MI
2009-01-20 248-805-0XXX 0000–0999Assigned FIRST COMMUNICATIONS, LLC 460K ROCHESTER MI
2009-01-05 248-796-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2009-01-05 248-796-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2009-01-05 248-796-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2008-12-18 248-906-5XXX 5000–5999Assigned METROPCS, INC. 5562 TROY MI
2008-12-18 248-906-6XXX 6000–6999Assigned METROPCS, INC. 5562 TROY MI
2008-12-10 248-277-2XXX 2000–2999Assigned METROPCS, INC. 5562 NORTHVILLE MI
2008-12-10 248-291-4XXX 4000–4999Assigned METROPCS, INC. 5562 ROYAL OAK MI
2008-12-08 248-686-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2008-12-08 248-812-6XXX 6000–6999Assigned METROPCS, INC. 5562 PONTIAC MI
2008-12-08 248-812-7XXX 7000–7999Assigned METROPCS, INC. 5562 PONTIAC MI
2008-12-08 248-812-8XXX 8000–8999Assigned METROPCS, INC. 5562 PONTIAC MI
2008-12-03 248-812-5XXX 5000–5999Assigned MICHIGAN BELL TEL CO 9323 PONTIAC MI
2008-11-25 248-747-0XXX 0000–0999Assigned METROPCS, INC. 5562 W BLOOMFLD MI
2008-11-12 248-977-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2008-11-04 248-528-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K TROY MI
2008-10-31 248-226-8XXX 8000–8999Assigned MICHIGAN BELL TEL CO 9323 SOUTHFIELD MI
2008-10-22 248-688-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TROY MI
2008-10-20 248-987-2XXX 2000–2999Assigned BHN IP ENABLED SERVICES, LLC 045L FARMINGTON MI
2008-10-08 248-237-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K AUBURN HTS MI
2008-10-03 248-220-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K BIRMINGHAM MI
2008-10-03 248-679-0XXX 0000–0999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHVILLE MI
2008-09-29 248-677-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2008-09-29 248-677-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2008-09-29 248-850-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2008-09-19 248-946-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHVILLE MI
2008-09-15 248-595-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2008-09-10 248-448-1XXX 1000–1999Assigned MICHIGAN BELL TEL CO 9323 SOUTHFIELD MI
2008-09-09 248-214-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2008-09-09 248-292-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2008-09-09 248-292-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2008-09-03 248-238-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2008-09-03 248-238-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2008-09-03 248-251-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TROY MI
2008-09-03 248-688-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TROY MI
2008-08-28 248-595-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SOUTHFIELD MI
2008-08-27 248-686-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2008-08-22 248-586-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K ROYAL OAK MI
2008-08-21 248-499-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 PONTIAC MI
2008-08-21 248-581-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 ROYAL OAK MI
2008-08-19 248-418-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K PONTIAC MI
2008-08-08 248-599-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E DRAYTON PL MI
2008-08-07 248-325-0XXX 0000–0999Assigned MICHIGAN BELL TEL CO 9323 W BLOOMFLD MI
2008-08-07 248-325-1XXX 1000–1999Assigned MICHIGAN BELL TEL CO 9323 W BLOOMFLD MI
2008-08-07 248-325-2XXX 2000–2999Assigned MICHIGAN BELL TEL CO 9323 W BLOOMFLD MI
2008-08-07 248-325-3XXX 3000–3999Assigned MICHIGAN BELL TEL CO 9323 W BLOOMFLD 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.