NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

22 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 224
NEW CINGULAR WIRELESS PCS, LLC - IL 11
ONVOY, LLC 6
VERSATEL LLC 1
INTRADO COMMUNICATIONS, LLC 1
EXIANT 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
2024-01-05 224-549-1XXX 1000–1999Assigned COMMIO, LLC 939H DUNDEE IL
2024-01-05 224-553-0XXX 0000–0999Assigned COMMIO, LLC 939H ELK GROVE IL
2024-01-05 224-553-1XXX 1000–1999Assigned COMMIO, LLC 939H ELK GROVE IL
2024-01-04 224-286-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LAKEZURICH IL
2023-12-22 224-331-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2023-11-16 224-448-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARRINGTON IL
2023-11-16 224-514-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2023-11-09 224-485-9XXX 9000–9999Assigned NUSO, LLC 732J BARRINGTON IL
2023-11-06 224-331-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKEGAN IL
2023-10-25 224-514-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2023-10-25 224-514-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2023-10-25 224-514-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2023-10-19 224-496-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SKOKIE IL
2023-10-19 224-496-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SKOKIE IL
2023-10-19 224-496-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SKOKIE IL
2023-10-19 224-524-0XXX 0000–0999Assigned TELNYX LLC 073H ROSELLE IL
2023-10-19 224-536-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SKOKIE IL
2023-10-18 224-527-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-527-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELK GROVE IL
2023-10-18 224-528-0XXX 0000–0999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2023-10-17 224-543-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J HALF DAY IL
2023-10-13 224-525-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-13 224-525-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHBROOK IL
2023-10-12 224-272-2XXX 2000–2999Assigned IP HORIZON LLC 515J ZION IL
2023-10-12 224-272-3XXX 3000–3999Assigned IP HORIZON LLC 515J ZION IL
2023-10-10 224-468-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2023-10-10 224-468-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2023-10-10 224-468-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2023-10-10 224-468-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2023-10-09 224-514-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2023-10-09 224-514-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2023-10-09 224-514-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2023-10-03 224-524-2XXX 2000–2999Assigned ONVOY, LLC 224C ROSELLE IL
2023-10-03 224-524-3XXX 3000–3999Assigned ONVOY, LLC 224C ROSELLE IL

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.