NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

49 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 464
NEW CINGULAR WIRELESS PCS, LLC - IL 43
ONVOY, LLC 4
OPENTACT INC. 1
INTRADO COMMUNICATIONS, 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
2022-01-24 464-300-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2022-01-24 464-300-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2022-01-24 464-300-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2022-01-24 464-300-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2022-01-24 464-300-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2022-01-24 464-300-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CICERO IL
2022-01-24 464-777-8XXX 8000–8999Assigned ONVOY, LLC 224C WILLOW SPG IL
2022-01-11 464-202-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LA GRANGE IL
2022-01-08 464-222-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J MOKENA IL
2022-01-06 464-666-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J CALUMET CY IL
2021-12-15 464-201-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2021-12-15 464-201-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2021-12-15 464-201-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2021-12-15 464-201-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2021-12-15 464-201-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2021-11-21 464-666-0XXX 0000–0999Assigned TELNYX LLC 073H CALUMET CY IL
2021-11-09 464-200-0XXX 0000–0999Assigned FRACTEL, LLC 965H LANSING IL
2021-11-09 464-200-2XXX 2000–2999Assigned FRACTEL, LLC 965H LANSING IL
2021-11-09 464-200-3XXX 3000–3999Assigned FRACTEL, LLC 965H LANSING IL
2021-11-09 464-300-0XXX 0000–0999Assigned FRACTEL, LLC 965H CICERO IL
2021-11-09 464-400-0XXX 0000–0999Assigned FRACTEL, LLC 965H BELLWOOD IL
2021-11-09 464-400-3XXX 3000–3999Assigned FRACTEL, LLC 965H BELLWOOD IL
2021-11-09 464-400-4XXX 4000–4999Assigned FRACTEL, LLC 965H BELLWOOD IL
2021-11-04 464-222-2XXX 2000–2999Assigned FRACTEL, LLC 965H MOKENA IL
2021-11-04 464-999-7XXX 7000–7999Assigned FRACTEL, LLC 965H THORNTON IL
2021-11-04 464-999-8XXX 8000–8999Assigned FRACTEL, LLC 965H THORNTON IL
2021-11-04 464-999-9XXX 9000–9999Assigned FRACTEL, LLC 965H THORNTON IL
2021-11-02 464-333-3XXX 3000–3999Assigned FRACTEL, LLC 965H HARVEY IL
2021-11-02 464-333-4XXX 4000–4999Assigned FRACTEL, LLC 965H HARVEY IL
2021-11-02 464-444-4XXX 4000–4999Assigned FRACTEL, LLC 965H BEECHER IL
2021-11-02 464-600-0XXX 0000–0999Assigned FRACTEL, LLC 965H FOREST IL
2021-11-02 464-600-6XXX 6000–6999Assigned FRACTEL, LLC 965H FOREST IL
2021-11-02 464-600-7XXX 7000–7999Assigned FRACTEL, LLC 965H FOREST IL
2021-11-02 464-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H CALUMET CY IL
2021-11-02 464-777-5XXX 5000–5999Assigned FRACTEL, LLC 965H WILLOW SPG IL
2021-11-02 464-777-7XXX 7000–7999Assigned FRACTEL, LLC 965H WILLOW SPG IL
2021-11-02 464-800-0XXX 0000–0999Assigned FRACTEL, LLC 965H TINLEYPARK IL
2021-11-02 464-800-8XXX 8000–8999Assigned FRACTEL, LLC 965H TINLEYPARK IL
2021-11-02 464-888-8XXX 8000–8999Assigned FRACTEL, LLC 965H ORLAND IL

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.