NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 574
OPENTACT INC. 4
PEERLESS NETWORK OF INDIANA, LLC - IN 1
ONVOY, LLC - IN 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 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
2018-06-20 574-364-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GOSHEN IN
2018-06-08 574-241-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F NO JUDSON IN
2018-05-25 574-526-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D LEESBURG IN
2018-05-25 574-566-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D CLAYPOOL IN
2018-05-15 574-200-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 WINAMAC IN
2018-05-15 574-216-2XXX 2000–2999Assigned TELNYX LLC 073H CULVER IN
2018-05-15 574-444-9XXX 9000–9999Assigned TELNYX LLC 073H OSCEOLA IN
2018-05-15 574-931-8XXX 8000–8999Assigned TELNYX LLC 073H SOUTH BEND IN
2018-05-02 574-221-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F NAPPANEE IN
2018-05-02 574-279-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F WALKERTON IN
2018-05-02 574-281-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F ARGOS IN
2018-04-27 574-655-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 FLORA IN
2018-04-26 574-355-5XXX 5000–5999Assigned METROPCS, INC. 5562 LOGANSPORT IN
2018-04-25 574-702-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOGANSPORT IN
2018-04-25 574-702-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOGANSPORT IN
2018-04-11 574-205-5XXX 5000–5999Assigned PULASKI-WHITE RURAL TELEPHONE COOPERATIVE, INC. 204H WINAMAC IN
2018-04-10 574-413-9XXX 9000–9999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F SOUTH BEND IN
2018-04-05 574-345-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D SOUTH BEND IN
2018-04-02 574-896-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F NO JUDSON IN
2018-03-19 574-380-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F ATWOOD IN
2018-03-12 574-526-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEESBURG IN
2018-03-12 574-804-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 NO LIBERTY IN
2018-03-07 574-207-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 KNOX IN
2018-03-02 574-364-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2018-03-02 574-688-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D PIERCETON IN
2018-02-09 574-842-1XXX 1000–1999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F CULVER IN
2018-02-07 574-338-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2018-01-08 574-800-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2017-12-12 574-200-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 WINAMAC IN
2017-12-12 574-240-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 MONTICELLO IN
2017-12-12 574-249-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 KNOX IN
2017-12-12 574-279-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 WALKERTON IN
2017-12-12 574-704-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 PLYMOUTH IN
2017-11-03 574-364-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GOSHEN IN
2017-10-30 574-338-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J ELKHART IN
2017-10-19 574-800-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2017-10-10 574-301-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F BREMEN IN
2017-10-10 574-999-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SOUTH BEND IN
2017-10-09 574-999-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 SOUTH BEND IN
2017-10-05 574-444-8XXX 8000–8999Assigned METROPCS, INC. 5562 OSCEOLA IN
2017-10-05 574-999-5XXX 5000–5999Assigned METROPCS, INC. 5562 SOUTH BEND IN
2017-10-05 574-999-6XXX 6000–6999Assigned METROPCS, INC. 5562 SOUTH BEND IN
2017-10-04 574-249-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 KNOX IN
2017-10-02 574-275-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 SYRACUSE IN
2017-10-02 574-800-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2017-10-02 574-800-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2017-09-21 574-201-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCHESTER IN
2017-09-07 574-240-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D MONTICELLO IN
2017-09-07 574-244-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 NO WEBSTER IN
2017-09-07 574-279-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 WALKERTON IN

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.