NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 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 217
ONVOY, LLC 3
NEW CINGULAR WIRELESS PCS, LLC - IL 3
EXIANT COMMUNICATIONS LLC 3
OPENTACT INC. 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
2021-11-03 217-401-0XXX 0000–0999Assigned TELNYX LLC 073H BLUFFS IL
2021-10-29 217-309-0XXX 0000–0999Assigned TELNYX LLC 073H FARMERSVL IL
2021-10-26 217-208-5XXX 5000–5999Assigned ONVOY, LLC 224C CHARLESTON IL
2021-10-26 217-500-5XXX 5000–5999Assigned ONVOY, LLC 224C EFFINGHAM IL
2021-10-26 217-512-6XXX 6000–6999Assigned ONVOY, LLC 224C CHARLESTON IL
2021-10-26 217-512-7XXX 7000–7999Assigned ONVOY, LLC 224C CHARLESTON IL
2021-10-25 217-809-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DECATUR IL
2021-10-20 217-275-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H VERMILION IL
2021-10-20 217-712-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PARIS IL
2021-10-20 217-805-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PALMYRA IL
2021-10-20 217-805-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PALMYRA IL
2021-10-20 217-808-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MARSHALL IL
2021-10-20 217-860-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CHATHAM IL
2021-10-20 217-880-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H BROCTON IL
2021-10-20 217-884-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H REDMON IL
2021-10-20 217-887-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H METCALF IL
2021-10-20 217-901-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BLUE MOUND IL
2021-10-20 217-901-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BLUE MOUND IL
2021-10-20 217-906-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BUFFALO IL
2021-10-20 217-915-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H AUBURN IL
2021-10-20 217-915-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H AUBURN IL
2021-10-20 217-952-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ATHENS IL
2021-10-18 217-991-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2021-10-11 217-534-8XXX 8000–8999Assigned COMPUTER TECHNIQUES, INC. - IL 197H COFFEEN IL
2021-10-11 217-719-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 JACKSONVL IL
2021-10-11 217-719-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 JACKSONVL IL
2021-10-11 217-719-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 JACKSONVL IL
2021-10-11 217-719-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 JACKSONVL IL
2021-09-28 217-512-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHARLESTON IL
2021-09-28 217-708-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EFFINGHAM IL
2021-09-28 217-969-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LITCHFIELD IL
2021-09-22 217-795-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ARGENTA IL
2021-09-20 217-318-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2021-09-17 217-275-1XXX 1000–1999Assigned ONVOY, LLC 224C VERMILION IL
2021-09-17 217-336-2XXX 2000–2999Assigned ONVOY, LLC 224C BAYLIS IL
2021-09-17 217-401-2XXX 2000–2999Assigned ONVOY, LLC 224C BLUFFS IL
2021-09-17 217-695-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 QUINCY IL
2021-09-17 217-719-3XXX 3000–3999Assigned METROPCS, INC. 5562 JACKSONVL IL
2021-09-17 217-833-5XXX 5000–5999Assigned ONVOY, LLC 224C GRIGGSVL IL
2021-09-17 217-939-2XXX 2000–2999Assigned ONVOY, LLC 224C WINCHESTER IL
2021-09-17 217-992-8XXX 8000–8999Assigned ONVOY, LLC 224C MOWEAQUA IL
2021-09-17 217-996-4XXX 4000–4999Assigned ONVOY, LLC 224C OAKWOOD IL
2021-09-16 217-991-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHAMPAURBN IL
2021-09-10 217-866-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2021-09-10 217-888-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2021-09-10 217-888-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2021-09-10 217-888-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2021-09-02 217-267-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J WESTVILLE IL
2021-09-02 217-498-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J ROCHESTER IL
2021-09-02 217-767-0XXX 0000–0999Assigned METROPCS, INC. 5562 ELWIN 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.