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
2026-09-09 734-570-7XXX 7000–7999Assigned EXIANT COMMUNICATIONS LLC 114J CHELSEA MI
2026-08-28 734-684-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 IDA MI
2026-08-26 734-967-7XXX 7000–7999Assigned AHOI LLC 883K CARLETON MI
2026-08-20 734-220-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 PETERSBURG MI
2026-08-18 734-521-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J LIVONIA MI
2026-08-18 734-708-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J MAYBEE MI
2026-08-06 734-581-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MONROE MI
2026-08-06 734-581-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MONROE MI
2026-07-17 734-302-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ANN ARBOR MI
2026-07-09 734-543-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J NEW BOSTON MI
2026-07-09 734-939-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J ROMULUS MI
2026-07-06 734-928-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J PLYMOUTH MI
2026-06-23 734-494-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ROMULUS MI
2026-06-15 734-742-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LIVONIA MI
2026-06-10 734-899-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J WAYNE MI
2026-06-02 734-613-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2026-06-02 734-613-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2026-05-29 734-234-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TEMPERANCE MI
2026-05-27 734-328-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEVILLE MI
2026-05-26 734-471-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKWOOD MI
2026-05-11 734-864-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J ANN ARBOR MI
2026-05-06 734-259-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLYMOUTH MI
2026-04-23 734-506-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARLETON MI
2026-04-23 734-865-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEVILLE MI
2026-04-08 734-885-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2026-04-08 734-885-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2026-04-07 734-818-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J TRENTON MI
2026-04-06 734-869-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J CARLETON MI
2026-04-01 734-493-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TRENTON MI
2026-04-01 734-621-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2026-04-01 734-682-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2026-03-04 734-613-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2026-03-04 734-613-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2026-03-04 734-785-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2026-03-04 734-991-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2026-02-25 734-494-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROMULUS MI
2026-02-20 734-251-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2026-02-20 734-356-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2026-02-20 734-926-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2026-02-09 734-682-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2026-02-03 734-312-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAYNE MI
2026-02-03 734-329-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAYNE MI
2026-02-03 734-557-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J YPSILANTI MI
2026-02-03 734-557-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J YPSILANTI MI
2026-02-03 734-736-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAYNE MI
2026-01-30 734-885-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2026-01-27 734-785-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2026-01-27 734-879-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 YPSILANTI MI
2026-01-22 734-556-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2026-01-08 734-312-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAYNE 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.