NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

10 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2023-05-05 217-833-9XXX 9000–9999Assigned ONVOY, LLC 224C GRIGGSVL IL
2023-05-03 217-729-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CHAMPAURBN IL
2023-05-03 217-729-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CHAMPAURBN IL
2023-05-01 217-515-4XXX 4000–4999Assigned ONVOY, LLC 224C OAKLAND IL
2023-05-01 217-657-8XXX 8000–8999Assigned ONVOY, LLC 224C SIGEL IL
2023-05-01 217-815-4XXX 4000–4999Assigned ONVOY, LLC 224C NIOTA IL
2023-05-01 217-864-7XXX 7000–7999Assigned ONVOY, LLC 224C MOUNT ZION IL
2023-05-01 217-887-3XXX 3000–3999Assigned ONVOY, LLC 224C METCALF IL
2023-05-01 217-921-3XXX 3000–3999Assigned ONVOY, LLC 224C PARIS IL
2023-04-28 217-408-5XXX 5000–5999Assigned ONVOY, LLC 224C JACKSONVL IL
2023-04-28 217-560-5XXX 5000–5999Assigned ONVOY, LLC 224C CHAMPAURBN IL
2023-04-25 217-977-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DANVILLE IL
2023-04-19 217-236-2XXX 2000–2999Assigned ONVOY, LLC 224C PERRY IL
2023-04-14 217-478-3XXX 3000–3999Assigned ONVOY, LLC 224C ALEXANDER IL
2023-04-14 217-507-4XXX 4000–4999Assigned ONVOY, LLC 224C STRASBURG IL
2023-04-14 217-551-4XXX 4000–4999Assigned ONVOY, LLC 224C HAMILTON IL
2023-04-11 217-988-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J ARCOLA IL
2023-04-10 217-505-2XXX 2000–2999Assigned ONVOY, LLC 224C WARSAW IL
2023-04-10 217-507-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 STRASBURG IL
2023-04-05 217-437-8XXX 8000–8999Assigned ONVOY, LLC 224C ROCKPORT IL
2023-04-05 217-457-5XXX 5000–5999Assigned ONVOY, LLC 224C CONCORD IL
2023-04-05 217-472-9XXX 9000–9999Assigned ONVOY, LLC 224C CHAPIN IL
2023-04-05 217-481-3XXX 3000–3999Assigned ONVOY, LLC 224C SPRINGFLD IL
2023-04-05 217-506-4XXX 4000–4999Assigned ONVOY, LLC 224C QUINCY IL
2023-03-22 217-559-3XXX 3000–3999Assigned ONVOY, LLC 224C WESTVILLE IL
2023-03-22 217-576-4XXX 4000–4999Assigned ONVOY, LLC 224C ROCHESTER IL
2023-03-14 217-225-9XXX 9000–9999Assigned TELNYX LLC 073H VERSAILLES IL
2023-03-10 217-312-4XXX 4000–4999Assigned COMPUTER TECHNIQUES, INC. - IL 197H OWANECO IL
2023-03-10 217-318-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2023-03-10 217-362-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DECATUR IL
2023-03-10 217-478-4XXX 4000–4999Assigned ONVOY, LLC 224C ALEXANDER IL
2023-03-01 217-426-1XXX 1000–1999Assigned ONVOY, LLC 224C NEW CANTON IL
2023-02-22 217-336-1XXX 1000–1999Assigned ONVOY, LLC 224C BAYLIS IL
2023-02-22 217-405-8XXX 8000–8999Assigned ONVOY, LLC 224C WHITE HALL IL
2023-02-22 217-406-8XXX 8000–8999Assigned ONVOY, LLC 224C PERRY IL
2023-02-22 217-571-8XXX 8000–8999Assigned ONVOY, LLC 224C MOUNT ZION IL
2023-02-13 217-505-4XXX 4000–4999Assigned ONVOY, LLC 224C WARSAW IL
2023-02-13 217-515-2XXX 2000–2999Assigned ONVOY, LLC 224C OAKLAND IL
2023-02-10 217-432-3XXX 3000–3999Assigned ONVOY, LLC 224C HULL IL
2023-02-10 217-953-9XXX 9000–9999Assigned ONVOY, LLC 224C SPRINGFLD IL
2023-02-08 217-687-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SEYMOUR IL
2023-02-08 217-867-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J PESOTUM IL
2023-02-08 217-952-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ATHENS IL
2023-02-07 217-548-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J FITHIAN IL
2023-02-07 217-776-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J COLLISON IL
2023-02-06 217-309-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J FARMERSVL IL
2023-02-06 217-627-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GIRARD IL
2023-02-06 217-955-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GREENVIEW IL
2023-01-31 217-261-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E MATTOON IL
2023-01-31 217-907-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ST JOSEPH IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.