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
2014-08-06 224-347-6XXX 6000–6999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2014-07-31 224-830-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-31 224-830-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-31 224-830-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-31 224-830-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-31 224-830-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-31 224-830-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-31 224-830-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-31 224-830-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-22 224-334-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-22 224-334-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-22 224-334-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-22 224-334-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2014-07-21 224-508-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-21 224-508-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-18 224-252-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAYSLAKE IL
2014-07-17 224-818-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2014-07-16 224-806-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELGIN IL
2014-07-11 224-413-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2014-07-11 224-413-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2014-07-11 224-814-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2014-07-11 224-814-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ROUND LAKE IL
2014-07-10 224-813-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEERFIELD IL
2014-07-10 224-813-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEERFIELD IL
2014-07-02 224-268-2XXX 2000–2999Assigned METROPCS, INC. 5562 ELGIN IL
2014-06-27 224-281-3XXX 3000–3999Assigned METROPCS, INC. 5562 ELGIN IL
2014-06-27 224-281-5XXX 5000–5999Assigned METROPCS, INC. 5562 ELGIN IL
2014-06-27 224-303-5XXX 5000–5999Assigned METROPCS, INC. 5562 WAUKEGAN IL
2014-06-27 224-303-6XXX 6000–6999Assigned METROPCS, INC. 5562 WAUKEGAN IL
2014-06-27 224-303-7XXX 7000–7999Assigned METROPCS, INC. 5562 WAUKEGAN IL
2014-06-27 224-413-2XXX 2000–2999Assigned METROPCS, INC. 5562 WAUKEGAN IL
2014-06-27 224-413-4XXX 4000–4999Assigned METROPCS, INC. 5562 WAUKEGAN IL
2014-06-27 224-413-5XXX 5000–5999Assigned METROPCS, INC. 5562 WAUKEGAN IL
2014-06-27 224-423-6XXX 6000–6999Assigned METROPCS, INC. 5562 DESPLAINES IL
2014-06-27 224-423-7XXX 7000–7999Assigned METROPCS, INC. 5562 DESPLAINES IL
2014-06-27 224-423-8XXX 8000–8999Assigned METROPCS, INC. 5562 DESPLAINES IL
2014-06-27 224-801-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PALATINE IL
2014-06-26 224-424-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LIBERTYVL IL
2014-06-26 224-774-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J ZION IL
2014-06-24 224-801-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PALATINE IL
2014-06-19 224-732-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAUCONDA IL
2014-06-18 224-713-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN 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.