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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2016-07-08 574-393-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2016-07-08 574-393-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2016-06-27 574-402-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-27 574-402-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-27 574-402-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-27 574-402-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-27 574-402-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-27 574-402-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-27 574-402-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-27 574-402-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-24 574-364-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 GOSHEN IN
2016-06-21 574-413-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-21 574-413-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-21 574-413-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-21 574-413-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-21 574-413-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-21 574-413-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-21 574-413-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2016-06-14 574-227-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F MILLWOOD IN
2016-06-09 574-413-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SOUTH BEND IN
2016-05-13 574-347-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2016-05-04 574-218-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ELKHART IN
2016-04-20 574-725-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOGANSPORT IN
2016-04-06 574-566-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D CLAYPOOL IN
2016-04-06 574-566-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D CLAYPOOL IN
2016-03-29 574-214-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 ELKHART IN
2016-03-29 574-314-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2016-03-29 574-347-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2016-03-29 574-347-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2016-03-29 574-444-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2016-03-29 574-444-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2016-03-23 574-319-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D TWELVEMILE IN
2016-03-23 574-319-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D TWELVEMILE IN
2016-03-14 574-696-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 MILFORD IN
2016-03-10 574-347-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 SOUTH BEND IN
2016-03-08 574-444-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 OSCEOLA IN
2016-03-02 574-842-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D CULVER IN
2016-03-02 574-842-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D CULVER IN
2016-02-23 574-444-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2016-02-23 574-444-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2016-02-22 574-406-4XXX 4000–4999Assigned METROPCS, INC. 5562 SOUTH BEND IN
2016-02-22 574-406-5XXX 5000–5999Assigned METROPCS, INC. 5562 SOUTH BEND IN
2016-01-22 574-347-7XXX 7000–7999Assigned METROPCS, INC. 5562 SOUTH BEND IN
2016-01-05 574-218-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2015-12-07 574-406-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2015-12-07 574-406-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2015-12-07 574-406-9XXX 9000–9999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2015-11-19 574-444-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2015-11-19 574-444-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D OSCEOLA IN
2015-11-19 574-444-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D OSCEOLA 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.