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
2010-11-03 574-208-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 SOUTH BEND IN
2010-10-20 574-440-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2010-10-19 574-208-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2010-10-19 574-208-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2010-10-08 574-367-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2010-10-01 574-367-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2010-10-01 574-367-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2010-10-01 574-367-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2010-10-01 574-383-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2010-09-23 574-575-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2010-09-22 574-297-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MONTICELLO IN
2010-09-03 574-367-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2010-09-03 574-367-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2010-09-03 574-367-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2010-09-03 574-440-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2010-08-30 574-575-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2010-08-26 574-355-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOGANSPORT IN
2010-08-24 574-383-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2010-08-24 574-575-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2010-08-24 574-675-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F OSCEOLA IN
2010-08-09 574-306-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARSAW IN
2010-08-09 574-306-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARSAW IN
2010-08-05 574-377-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEESBURG IN
2010-08-04 574-364-1XXX 1000–1999Assigned FRONTIER NORTH, INC.. - IN 0772 GOSHEN IN
2010-08-04 574-364-2XXX 2000–2999Assigned FRONTIER NORTH, INC.. - IN 0772 GOSHEN IN
2010-08-04 574-364-3XXX 3000–3999Assigned FRONTIER NORTH, INC.. - IN 0772 GOSHEN IN
2010-08-04 574-364-4XXX 4000–4999Assigned FRONTIER NORTH, INC.. - IN 0772 GOSHEN IN
2010-07-30 574-307-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 SOUTH BEND IN
2010-07-29 574-310-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2010-07-06 574-350-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2010-07-06 574-440-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 SOUTH BEND IN
2010-06-28 574-310-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2010-06-28 574-310-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2010-06-22 574-249-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KNOX IN
2010-06-22 574-348-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F HAMLET IN
2010-06-22 574-804-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F NO LIBERTY IN
2010-06-18 574-363-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F BOURBON IN
2010-06-11 574-203-3XXX 3000–3999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F LAPAZ IN
2010-06-11 574-207-5XXX 5000–5999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F KNOX IN
2010-06-11 574-241-2XXX 2000–2999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F NO JUDSON IN
2010-06-11 574-263-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F TIPPECANOE IN
2010-06-11 574-279-2XXX 2000–2999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F WALKERTON IN
2010-06-11 574-281-3XXX 3000–3999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F ARGOS IN
2010-06-11 574-316-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F PLYMOUTH IN
2010-06-11 574-696-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-WEST, LLC - IN 874F MILFORD IN
2010-06-10 574-335-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2010-06-07 574-377-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEESBURG IN
2010-06-04 574-307-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2010-06-04 574-307-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2010-06-04 574-307-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND 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.