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
2018-01-19 217-933-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HUMBOLDT IL
2018-01-08 217-500-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EFFINGHAM IL
2018-01-04 217-205-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MATTOON IL
2018-01-04 217-205-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MATTOON IL
2018-01-04 217-205-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MATTOON IL
2018-01-04 217-561-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 TAYLORVL IL
2018-01-03 217-775-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 DECATUR IL
2017-12-28 217-635-1XXX 1000–1999Assigned ONVOY, LLC 224C OAKFORD IL
2017-12-14 217-441-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPRINGFLD IL
2017-12-13 217-694-2XXX 2000–2999Assigned ONVOY, LLC 224C FLATVILLE IL
2017-12-06 217-207-2XXX 2000–2999Assigned ONVOY, LLC 224C ST JOSEPH IL
2017-11-21 217-250-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 LITCHFIELD IL
2017-11-21 217-450-9XXX 9000–9999Assigned ONVOY, LLC 224C DECATUR IL
2017-11-21 217-775-0XXX 0000–0999Assigned ONVOY, LLC 224C DECATUR IL
2017-11-14 217-608-0XXX 0000–0999Assigned COMPUTER TECHNIQUES, INC. - IL 197H HILLSBORO IL
2017-11-14 217-630-0XXX 0000–0999Assigned COMPUTER TECHNIQUES, INC. - IL 197H NOKOMIS IL
2017-11-14 217-646-6XXX 6000–6999Assigned ONVOY, LLC 224C PAWNEE IL
2017-11-13 217-487-0XXX 0000–0999Assigned ONVOY, LLC 224C CANTRALL IL
2017-11-09 217-670-8XXX 8000–8999Assigned ONVOY, LLC 224C SPRINGFLD IL
2017-11-09 217-679-9XXX 9000–9999Assigned ONVOY, LLC 224C SPRINGFLD IL
2017-10-31 217-989-3XXX 3000–3999Assigned MTC COMMUNICATIONS, INC. - IL 342F DALLASCITY IL
2017-10-25 217-330-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DECATUR IL
2017-10-25 217-413-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DECATUR IL
2017-10-25 217-475-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DECATUR IL
2017-10-13 217-319-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHATHAM IL
2017-10-10 217-790-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHARLESTON IL
2017-10-10 217-790-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHARLESTON IL
2017-10-10 217-790-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHARLESTON IL
2017-10-06 217-800-4XXX 4000–4999Assigned ONVOY, LLC 224C CHAMPAURBN IL
2017-10-06 217-800-5XXX 5000–5999Assigned ONVOY, LLC 224C CHAMPAURBN IL
2017-10-06 217-800-6XXX 6000–6999Assigned ONVOY, LLC 224C CHAMPAURBN IL
2017-10-04 217-631-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MONTICELLO IL
2017-10-04 217-772-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 HOOPESTON IL
2017-10-03 217-908-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CARTHAGE IL
2017-09-27 217-806-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DANVILLE IL
2017-09-19 217-207-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ST JOSEPH IL
2017-09-07 217-312-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 OWANECO IL
2017-09-07 217-315-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WITT IL
2017-09-06 217-296-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 SHELBYVL IL
2017-09-06 217-407-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 PITTSFIELD IL
2017-09-06 217-599-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 TUSCOLA IL
2017-09-06 217-952-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ATHENS IL
2017-08-29 217-773-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MTSTERLING IL
2017-08-29 217-800-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2017-08-29 217-800-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2017-08-29 217-833-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GRIGGSVL IL
2017-08-24 217-309-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 FARMERSVL IL
2017-08-21 217-250-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LITCHFIELD IL
2017-08-21 217-296-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SHELBYVL IL
2017-08-21 217-297-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PANA 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.