NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 5
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
2014-06-18 224-713-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-06-18 224-713-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-06-18 224-713-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-06-18 224-713-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-06-17 224-864-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MUNDELEIN IL
2014-06-16 224-257-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J DESPLAINES IL
2014-06-16 224-804-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2014-06-16 224-999-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EVANSTON IL
2014-06-13 224-337-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FOX LAKE IL
2014-06-13 224-352-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HALF DAY IL
2014-06-13 224-385-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2014-06-13 224-603-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ANTIOCH IL
2014-06-13 224-650-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HUNTLEY IL
2014-06-13 224-701-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKE VILLA IL
2014-06-13 224-713-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-713-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-713-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-713-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-713-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-814-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROUND LAKE IL
2014-06-13 224-817-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-817-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2014-06-13 224-888-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARY IL
2014-06-10 224-407-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2014-06-10 224-806-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2014-06-10 224-806-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ELGIN IL
2014-06-10 224-813-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEERFIELD IL
2014-06-06 224-427-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2014-06-06 224-706-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LAKEFOREST IL
2014-06-06 224-770-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2014-06-06 224-770-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2014-05-27 224-706-9XXX 9000–9999Assigned ONVOY, LLC 224C LAKEFOREST IL
2014-05-22 224-360-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2014-05-22 224-704-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-05-22 224-704-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-05-22 224-704-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2014-05-16 224-661-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GLENVIEW IL
2014-05-14 224-432-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GLENVIEW IL
2014-05-12 224-236-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BARTLETT IL
2014-05-09 224-665-0XXX 0000–0999Assigned ILLINOIS BELL TEL CO 9329 WAUKEGAN IL
2014-05-09 224-665-1XXX 1000–1999Assigned ILLINOIS BELL TEL CO 9329 WAUKEGAN IL
2014-05-09 224-665-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 WAUKEGAN IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.