NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

29 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 947
NEW CINGULAR WIRELESS PCS, LLC - IL 27
INTRADO COMMUNICATIONS, LLC 1
BANDWIDTH.COM CLEC, LLC - MI 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
2019-10-31 947-519-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-10-31 947-519-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-10-31 947-519-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-10-31 947-519-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-10-31 947-519-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-10-31 947-519-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-10-31 947-519-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-10-02 947-985-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D SOUTHFIELD MI
2019-09-25 947-208-3XXX 3000–3999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G AUBURN HTS MI
2019-09-18 947-465-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COMMERCE MI
2019-08-28 947-900-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2019-08-09 947-209-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2019-07-19 947-900-0XXX 0000–0999Assigned FRACTEL, LLC 965H SOUTHFIELD MI
2019-07-19 947-900-9XXX 9000–9999Assigned FRACTEL, LLC 965H SOUTHFIELD MI
2019-07-12 947-215-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-07-12 947-215-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-07-12 947-215-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-07-12 947-215-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-06-25 947-210-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2019-06-19 947-209-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2019-06-19 947-215-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-06-19 947-215-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-06-11 947-210-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2019-05-14 947-215-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2019-05-03 947-465-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E COMMERCE MI
2019-05-03 947-465-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COMMERCE MI
2019-05-01 947-214-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WALLEDLAKE MI
2019-03-19 947-215-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2019-03-13 947-215-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-03-13 947-215-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-03-06 947-209-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2019-02-21 947-208-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J AUBURN HTS MI
2019-02-21 947-210-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2019-02-11 947-622-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-02-11 947-622-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2019-01-23 947-985-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-01-23 947-985-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2019-01-17 947-214-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WALLEDLAKE MI
2019-01-04 947-465-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COMMERCE MI
2019-01-03 947-520-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-01-03 947-520-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-01-03 947-520-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-01-03 947-520-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-01-03 947-520-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-01-03 947-520-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2019-01-03 947-520-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK 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.