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
2013-09-27 248-234-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G SOUTHFIELD MI
2013-09-27 248-289-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G AUBURN HTS MI
2013-09-27 248-297-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G CLARKSTON MI
2013-09-27 248-308-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHVILLE MI
2013-09-27 248-458-4XXX 4000–4999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G BIRMINGHAM MI
2013-09-27 248-817-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G TROY MI
2013-09-27 248-886-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G DRAYTON PL MI
2013-09-27 248-991-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G FARMINGTON MI
2013-09-12 248-378-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 NORTHVILLE MI
2013-09-10 248-956-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WALLEDLAKE MI
2013-09-09 248-712-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J BIRMINGHAM MI
2013-08-26 248-221-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-08-23 248-221-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2013-08-23 248-483-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2013-08-19 248-221-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2013-08-13 248-221-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-08-09 248-308-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NORTHVILLE MI
2013-08-09 248-606-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 AUBURN HTS MI
2013-08-06 248-923-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ROCHESTER MI
2013-08-05 248-308-2XXX 2000–2999Assigned BHN IP ENABLED SERVICES, LLC 045L NORTHVILLE MI
2013-08-05 248-859-3XXX 3000–3999Assigned BHN IP ENABLED SERVICES, LLC 045L WALLEDLAKE MI
2013-08-05 248-972-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PONTIAC MI
2013-07-31 248-221-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-07-31 248-268-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ROYAL OAK MI
2013-07-31 248-268-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ROYAL OAK MI
2013-07-31 248-268-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J ROYAL OAK MI
2013-07-25 248-296-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2013-07-19 248-278-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SOUTH LYON MI
2013-07-18 248-599-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DRAYTON PL MI
2013-07-17 248-392-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2013-07-16 248-268-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2013-07-10 248-297-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CLARKSTON MI
2013-07-10 248-297-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CLARKSTON MI
2013-07-10 248-297-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CLARKSTON MI
2013-07-10 248-297-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CLARKSTON MI
2013-07-10 248-297-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CLARKSTON MI
2013-07-09 248-268-8XXX 8000–8999Assigned 123.NET, LLC 2550 ROYAL OAK MI
2013-07-09 248-727-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2013-07-09 248-727-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2013-07-09 248-849-9XXX 9000–9999Assigned 123.NET, LLC 2550 SOUTHFIELD MI
2013-07-05 248-220-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2013-07-05 248-220-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2013-07-05 248-268-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L ROYAL OAK MI
2013-07-05 248-283-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2013-07-01 248-592-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E W BLOOMFLD MI
2013-06-26 248-213-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SOUTHFIELD MI
2013-06-26 248-282-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 BIRMINGHAM MI
2013-06-24 248-817-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J TROY MI
2013-06-14 248-234-5XXX 5000–5999Assigned WOW! INTERNET, CABLE AND PHONE 961J SOUTHFIELD MI
2013-06-14 248-820-0XXX 0000–0999Assigned METROPCS, INC. 5562 HOLLY 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.