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
2013-11-14 217-267-1XXX 1000–1999Assigned ONVOY, LLC 224C WESTVILLE IL
2013-11-14 217-354-9XXX 9000–9999Assigned ONVOY, LLC 224C OAKWOOD IL
2013-11-12 217-204-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2013-11-12 217-207-3XXX 3000–3999Assigned ONVOY, LLC 224C ST JOSEPH IL
2013-11-12 217-212-2XXX 2000–2999Assigned ONVOY, LLC 224C FITHIAN IL
2013-11-12 217-247-3XXX 3000–3999Assigned ONVOY, LLC 224C RIDGE FARM IL
2013-11-12 217-284-6XXX 6000–6999Assigned ONVOY, LLC 224C INDIANOLA IL
2013-11-12 217-576-3XXX 3000–3999Assigned ONVOY, LLC 224C ROCHESTER IL
2013-11-12 217-601-6XXX 6000–6999Assigned ONVOY, LLC 224C GEORGETOWN IL
2013-11-12 217-615-5XXX 5000–5999Assigned ONVOY, LLC 224C DECATUR IL
2013-11-12 217-629-5XXX 5000–5999Assigned ONVOY, LLC 224C RIVERTON IL
2013-11-12 217-632-6XXX 6000–6999Assigned ONVOY, LLC 224C PETERSBURG IL
2013-11-12 217-634-2XXX 2000–2999Assigned ONVOY, LLC 224C TALLULA IL
2013-11-12 217-635-2XXX 2000–2999Assigned ONVOY, LLC 224C OAKFORD IL
2013-11-12 217-727-6XXX 6000–6999Assigned ONVOY, LLC 224C GIBSONCITY IL
2013-11-12 217-963-5XXX 5000–5999Assigned ONVOY, LLC 224C HARRISTOWN IL
2013-11-06 217-393-6XXX 6000–6999Assigned ONVOY, LLC 224C CATLIN IL
2013-11-06 217-487-6XXX 6000–6999Assigned ONVOY, LLC 224C CANTRALL IL
2013-11-06 217-993-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPRINGFLD IL
2013-11-06 217-993-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPRINGFLD IL
2013-10-31 217-364-8XXX 8000–8999Assigned ONVOY, LLC 224C BUFFALO IL
2013-10-31 217-516-3XXX 3000–3999Assigned ONVOY, LLC 224C DANVILLE IL
2013-10-31 217-574-4XXX 4000–4999Assigned ONVOY, LLC 224C FAIRMOUNT IL
2013-10-31 217-636-5XXX 5000–5999Assigned ONVOY, LLC 224C ATHENS IL
2013-10-31 217-666-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WEST DANA IL
2013-10-22 217-600-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CHAMPAURBN IL
2013-10-01 217-240-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EFFINGHAM IL
2013-10-01 217-519-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DECATUR IL
2013-10-01 217-519-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DECATUR IL
2013-09-16 217-666-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WEST DANA IL
2013-09-10 217-402-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2013-09-09 217-607-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CHAMPAURBN IL
2013-08-28 217-506-2XXX 2000–2999Assigned UNITED STATES CELLULAR - IL 6265 QUINCY IL
2013-07-15 217-666-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WEST DANA IL
2013-06-28 217-814-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 SPRINGFLD IL
2013-06-28 217-814-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 SPRINGFLD IL
2013-06-28 217-993-0XXX 0000–0999Assigned ILLINOIS BELL TEL CO 9329 SPRINGFLD IL
2013-06-24 217-904-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2013-06-24 217-904-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2013-05-23 217-408-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2013-04-26 217-904-1XXX 1000–1999Assigned NUSO, LLC 551G CHAMPAURBN IL
2013-04-22 217-334-7XXX 7000–7999Assigned ADAMS TELSYSTEMS, INC. 7091 COLUMBUS IL
2013-04-22 217-434-7XXX 7000–7999Assigned ADAMS TELSYSTEMS, INC. 7091 FOWLER IL
2013-04-22 217-656-8XXX 8000–8999Assigned ADAMS TELSYSTEMS, INC. 7091 PAYSON IL
2013-04-22 217-885-7XXX 7000–7999Assigned ADAMS TELSYSTEMS, INC. 7091 BURTON IL
2013-04-16 217-921-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 PARIS IL
2013-04-11 217-209-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J QUINCY IL
2013-04-11 217-670-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPRINGFLD IL
2013-04-11 217-670-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPRINGFLD IL
2013-04-04 217-869-1XXX 1000–1999Assigned NUSO, LLC 551G JACKSONVL 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.