NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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, last 30 days — NPA 734
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 1
EXIANT COMMUNICATIONS LLC 1
AHOI LLC 1
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
2008-09-15 734-929-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2008-09-05 734-585-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ANN ARBOR MI
2008-08-28 734-628-2XXX 2000–2999Assigned METROPCS, INC. 5562 MILAN MI
2008-08-28 734-659-6XXX 6000–6999Assigned METROPCS, INC. 5562 ERIE MI
2008-08-28 734-819-7XXX 7000–7999Assigned METROPCS, INC. 5562 MONROE MI
2008-08-18 734-780-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2008-08-18 734-780-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2008-08-18 734-780-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2008-08-18 734-845-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2008-08-18 734-845-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2008-08-01 734-329-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 WAYNE MI
2008-07-29 734-295-3XXX 3000–3999Assigned TC3 TELECOM, INC. - MI 3459 SALINE MI
2008-07-15 734-547-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 YPSILANTI MI
2008-07-10 734-271-2XXX 2000–2999Assigned METROPCS, INC. 5562 CARLETON MI
2008-07-02 734-329-4XXX 4000–4999Assigned METROPCS, INC. 5562 WAYNE MI
2008-06-27 734-452-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K LIVONIA MI
2008-06-26 734-855-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2008-06-26 734-922-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2008-06-17 734-556-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WYANDOTTE MI
2008-06-13 734-452-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L LIVONIA MI
2008-06-12 734-352-6XXX 6000–6999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L ANN ARBOR MI
2008-06-12 734-736-6XXX 6000–6999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L WAYNE MI
2008-06-03 734-648-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PINCKNEY MI
2008-05-27 734-396-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E MANCHESTER MI
2008-05-20 734-619-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ANN ARBOR MI
2008-05-20 734-619-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ANN ARBOR MI
2008-05-14 734-288-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 WYANDOTTE MI
2008-05-08 734-799-7XXX 7000–7999Assigned METROPCS, INC. 5562 CARLETON MI
2008-05-07 734-992-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ROMULUS MI
2008-05-05 734-419-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2008-04-15 734-404-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PLYMOUTH MI
2008-04-15 734-404-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PLYMOUTH MI
2008-04-10 734-233-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLYMOUTH MI
2008-04-03 734-708-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MAYBEE MI
2008-04-02 734-869-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CARLETON MI
2008-03-31 734-469-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2008-03-28 734-926-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2008-03-21 734-568-2XXX 2000–2999Assigned DEERFIELD FARMERS' TELEPHONE COMPANY - MI 558A LAMBERTVL MI
2008-03-21 734-868-8XXX 8000–8999Assigned DEERFIELD FARMERS' TELEPHONE COMPANY - MI 558A IDA MI
2008-03-12 734-757-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2008-03-12 734-757-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2008-02-20 734-469-6XXX 6000–6999Assigned METROPCS, INC. 5562 LIVONIA MI
2008-02-20 734-757-5XXX 5000–5999Assigned METROPCS, INC. 5562 ANN ARBOR MI
2008-02-20 734-757-7XXX 7000–7999Assigned METROPCS, INC. 5562 ANN ARBOR MI
2008-02-14 734-799-6XXX 6000–6999Assigned METROPCS, INC. 5562 CARLETON MI
2008-02-12 734-672-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TRENTON MI
2008-02-05 734-301-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 TRENTON MI
2008-01-31 734-469-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 LIVONIA MI
2008-01-31 734-469-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 LIVONIA MI
2008-01-28 734-286-7XXX 7000–7999Assigned METROPCS, INC. 5562 WYANDOTTE 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.