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
2017-04-14 217-695-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 QUINCY IL
2017-04-14 217-695-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 QUINCY IL
2017-04-12 217-516-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DANVILLE IL
2017-04-12 217-516-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DANVILLE IL
2017-04-04 217-291-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2017-03-30 217-205-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MATTOON IL
2017-03-30 217-297-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 PANA IL
2017-03-30 217-608-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 HILLSBORO IL
2017-03-30 217-707-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 TAYLORVL IL
2017-03-21 217-814-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 SPRINGFLD IL
2017-03-20 217-207-0XXX 0000–0999Assigned TELNYX LLC 073H ST JOSEPH IL
2017-03-20 217-601-9XXX 9000–9999Assigned TELNYX LLC 073H GEORGETOWN IL
2017-03-20 217-680-9XXX 9000–9999Assigned TELNYX LLC 073H GIBSONCITY IL
2017-03-20 217-850-0XXX 0000–0999Assigned TELNYX LLC 073H CHAMPAURBN IL
2017-03-08 217-203-1XXX 1000–1999Assigned TELNYX LLC 073H BUFFALO IL
2017-03-08 217-471-8XXX 8000–8999Assigned TELNYX LLC 073H ROCHESTER IL
2017-03-08 217-572-9XXX 9000–9999Assigned TELNYX LLC 073H SPRINGFLD IL
2017-03-07 217-730-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WINCHESTER IL
2017-02-17 217-902-5XXX 5000–5999Assigned ILLINOIS BELL TEL CO 9329 CHAMPAURBN IL
2017-02-17 217-902-6XXX 6000–6999Assigned ILLINOIS BELL TEL CO 9329 CHAMPAURBN IL
2017-02-17 217-902-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 CHAMPAURBN IL
2017-02-17 217-902-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 CHAMPAURBN IL
2017-02-17 217-902-9XXX 9000–9999Assigned ILLINOIS BELL TEL CO 9329 CHAMPAURBN IL
2017-02-14 217-806-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DANVILLE IL
2017-02-14 217-888-8XXX 8000–8999Assigned ONVOY, LLC 224C CHAMPAURBN IL
2017-02-02 217-319-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHATHAM IL
2017-01-30 217-577-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 QUINCY IL
2017-01-30 217-695-5XXX 5000–5999Assigned METROPCS, INC. 5562 QUINCY IL
2017-01-25 217-850-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2016-12-27 217-250-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LITCHFIELD IL
2016-12-20 217-655-9XXX 9000–9999Assigned TELNYX LLC 073H DANVILLE IL
2016-12-20 217-917-9XXX 9000–9999Assigned TELNYX LLC 073H DECATUR IL
2016-12-15 217-291-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSONVL IL
2016-12-14 217-208-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHARLESTON IL
2016-12-06 217-717-0XXX 0000–0999Assigned METROPCS, INC. 5562 SPRINGFLD IL
2016-11-25 217-650-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ATLANTA IL
2016-11-25 217-680-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GIBSONCITY IL
2016-11-07 217-208-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHARLESTON IL
2016-11-03 217-216-6XXX 6000–6999Assigned ADAMS TELSYSTEMS, INC. 7091 RUSHVILLE IL
2016-11-01 217-616-9XXX 9000–9999Assigned FRONTIER NORTH, INC. - IL 1015 AUBURN IL
2016-11-01 217-780-9XXX 9000–9999Assigned FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL 1000 CASEY IL
2016-10-20 217-208-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHARLESTON IL
2016-09-30 217-240-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EFFINGHAM IL
2016-09-27 217-240-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EFFINGHAM IL
2016-09-23 217-730-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WINCHESTER IL
2016-09-22 217-703-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DANVILLE IL
2016-09-21 217-730-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 WINCHESTER IL
2016-09-21 217-942-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 CARROLLTON IL
2016-09-14 217-991-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2016-09-12 217-441-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD 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.