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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-12-17 217-582-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E OGDEN IL
2014-12-17 217-583-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ROYAL IL
2014-12-17 217-595-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PENFIELD IL
2014-12-17 217-634-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E TALLULA IL
2014-12-17 217-635-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E OAKFORD IL
2014-12-17 217-643-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E THOMASBORO IL
2014-12-17 217-694-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E FLATVILLE IL
2014-12-16 217-294-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MATTOON IL
2014-12-15 217-803-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WEST DANA IL
2014-12-15 217-993-8XXX 8000–8999Assigned ONVOY, LLC 224C SPRINGFLD IL
2014-12-15 217-993-9XXX 9000–9999Assigned ONVOY, LLC 224C SPRINGFLD IL
2014-12-10 217-403-9XXX 9000–9999Assigned ONVOY, LLC 224C CHAMPAURBN IL
2014-12-10 217-954-9XXX 9000–9999Assigned ONVOY, LLC 224C CHAMPAURBN IL
2014-12-02 217-408-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2014-10-23 217-271-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2014-10-22 217-750-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LINCOLN IL
2014-10-22 217-750-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LINCOLN IL
2014-10-16 217-419-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAMPAURBN IL
2014-10-08 217-666-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WEST DANA IL
2014-10-08 217-693-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2014-10-08 217-693-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2014-10-08 217-904-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2014-10-03 217-503-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SPRINGFLD IL
2014-10-02 217-441-3XXX 3000–3999Assigned METROPCS, INC. 5562 SPRINGFLD IL
2014-10-02 217-441-5XXX 5000–5999Assigned METROPCS, INC. 5562 SPRINGFLD IL
2014-10-02 217-600-0XXX 0000–0999Assigned METROPCS, INC. 5562 CHAMPAURBN IL
2014-10-02 217-600-1XXX 1000–1999Assigned METROPCS, INC. 5562 CHAMPAURBN IL
2014-09-26 217-253-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 TUSCOLA IL
2014-09-26 217-318-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHAMPAURBN IL
2014-09-26 217-718-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SPRINGFLD IL
2014-09-24 217-372-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2014-09-24 217-577-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 QUINCY IL
2014-09-24 217-577-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 QUINCY IL
2014-09-16 217-697-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 CHATHAM IL
2014-09-04 217-330-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DECATUR IL
2014-09-03 217-918-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DANVILLE IL
2014-08-26 217-908-1XXX 1000–1999Assigned ADAMS TELSYSTEMS, INC. 7091 CARTHAGE IL
2014-08-20 217-240-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EFFINGHAM IL
2014-08-20 217-851-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 LITCHFIELD IL
2014-08-12 217-318-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2014-08-12 217-318-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2014-08-07 217-280-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPRINGFLD IL
2014-08-04 217-530-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CHAMPAURBN IL
2014-07-25 217-461-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2014-07-25 217-530-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2014-07-16 217-504-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J DANVILLE IL
2014-07-15 217-203-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BUFFALO IL
2014-07-14 217-495-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROSSVILLE IL
2014-07-10 217-307-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAYNESVL IL
2014-07-10 217-308-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ATLANTA 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.