NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2017-12-18 734-802-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C YPSILANTI MI
2017-12-13 734-868-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C IDA MI
2017-11-29 734-318-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WYANDOTTE MI
2017-11-29 734-318-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WYANDOTTE MI
2017-11-20 734-359-8XXX 8000–8999Assigned TELNET WORLDWIDE, INC. 817J PLYMOUTH MI
2017-11-16 734-359-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C PLYMOUTH MI
2017-11-16 734-359-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PLYMOUTH MI
2017-11-15 734-436-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2017-11-15 734-715-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LAMBERTVL MI
2017-11-15 734-800-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2017-10-30 734-304-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TRENTON MI
2017-10-30 734-304-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TRENTON MI
2017-10-25 734-366-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2017-10-25 734-366-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2017-10-18 734-514-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C IDA MI
2017-10-12 734-325-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BELLEVILLE MI
2017-09-29 734-742-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LIVONIA MI
2017-09-27 734-882-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ANN ARBOR MI
2017-09-18 734-567-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 WILLIS MI
2017-09-15 734-928-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLYMOUTH MI
2017-09-15 734-928-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLYMOUTH MI
2017-09-12 734-746-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7279 DUNDEE MI
2017-09-11 734-800-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2017-09-11 734-800-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2017-09-11 734-881-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2017-09-11 734-881-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2017-09-11 734-881-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2017-09-08 734-359-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PLYMOUTH MI
2017-09-06 734-406-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROMULUS MI
2017-09-06 734-406-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROMULUS MI
2017-08-29 734-800-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2017-08-29 734-881-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2017-08-18 734-800-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ANN ARBOR MI
2017-08-15 734-318-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2017-08-15 734-318-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2017-08-15 734-318-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2017-07-18 734-234-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TEMPERANCE MI
2017-07-17 734-294-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEVILLE MI
2017-07-07 734-749-5XXX 5000–5999Assigned METROPCS, INC. 5562 ROCKWOOD MI
2017-07-05 734-521-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2017-07-05 734-521-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2017-07-05 734-521-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2017-07-05 734-742-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2017-06-30 734-228-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PLYMOUTH MI
2017-06-30 734-802-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C YPSILANTI MI
2017-06-06 734-888-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C NOSYLVANIA MI
2017-05-23 734-828-9XXX 9000–9999Assigned METROPCS, INC. 5562 DUNDEE MI
2017-05-19 734-366-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2017-05-19 734-521-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2017-04-27 734-876-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MAYBEE MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.