NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

49 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 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
2026-03-02 464-286-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-03-02 464-286-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-03-02 464-286-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-03-02 464-286-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-03-02 464-286-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-03-02 464-286-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-03-02 464-286-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-03-02 464-286-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-02-27 464-283-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLUEISLAND IL
2026-02-27 464-283-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLUEISLAND IL
2026-02-27 464-283-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLUEISLAND IL
2026-02-27 464-285-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-02-27 464-285-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-02-27 464-285-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2026-02-20 464-264-9XXX 9000–9999Assigned ONVOY, LLC 224C OAK LAWN IL
2026-02-04 464-284-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICAGOHTS IL
2026-02-04 464-284-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICAGOHTS IL
2026-02-04 464-284-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICAGOHTS IL
2026-02-02 464-277-8XXX 8000–8999Assigned ONVOY, LLC 224C SUMMIT IL
2026-01-27 464-259-8XXX 8000–8999Assigned ONVOY, LLC 224C CICERO IL
2026-01-27 464-284-0XXX 0000–0999Assigned ONVOY, LLC 224C CHICAGOHTS IL
2026-01-14 464-264-8XXX 8000–8999Assigned ONVOY, LLC 224C OAK LAWN IL
2026-01-14 464-283-0XXX 0000–0999Assigned ONVOY, LLC 224C BLUEISLAND IL
2026-01-14 464-567-0XXX 0000–0999Assigned ONVOY, LLC 224C HARVEY IL
2026-01-13 464-282-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J OAK FOR SO IL
2025-12-29 464-262-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLUEISLAND IL
2025-12-18 464-256-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICAGOHTS IL
2025-12-15 464-281-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-281-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-282-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-282-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-282-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-282-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-15 464-282-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OAK FOR SO IL
2025-12-12 464-259-1XXX 1000–1999Assigned ONVOY, LLC 224C CICERO IL
2025-12-12 464-280-0XXX 0000–0999Assigned ONVOY, LLC 224C ORLAND IL
2025-12-09 464-251-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2025-12-09 464-251-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2025-11-25 464-256-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICAGOHTS IL
2025-11-20 464-249-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICAGOHTS IL
2025-11-18 464-270-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE IL
2025-11-18 464-270-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA GRANGE 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.