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
2014-04-30 574-334-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2014-04-30 574-703-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2014-04-30 574-703-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2014-04-30 574-703-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SOUTH BEND IN
2014-04-04 574-318-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SOUTH BEND IN
2014-04-02 574-725-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOGANSPORT IN
2014-03-25 574-207-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KNOX IN
2014-03-25 574-279-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WALKERTON IN
2014-03-25 574-285-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NAPPANEE IN
2014-03-25 574-313-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FLORA IN
2014-03-25 574-329-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OSCEOLA IN
2014-03-25 574-398-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LOGANSPORT IN
2014-03-25 574-398-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LOGANSPORT IN
2014-03-25 574-635-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CULVER IN
2014-03-25 574-678-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MILFORD IN
2014-03-25 574-808-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTICELLO IN
2014-03-25 574-891-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DUNLAP IN
2014-03-24 574-200-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINAMAC IN
2014-03-24 574-212-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTEREY IN
2014-03-24 574-227-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MILLWOOD IN
2014-03-24 574-241-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NO JUDSON IN
2014-03-24 574-248-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BREMEN IN
2014-03-24 574-330-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MILLERSBG IN
2014-03-24 574-358-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MIDDLEBURY IN
2014-03-24 574-364-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GOSHEN IN
2014-03-24 574-526-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEESBURG IN
2014-03-24 574-633-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WYATT IN
2014-03-24 574-688-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 PIERCETON IN
2014-03-24 574-797-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWCARLISL IN
2014-03-24 574-804-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 NO LIBERTY IN
2014-03-24 574-862-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAKARUSA IN
2014-03-21 574-203-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAPAZ IN
2014-03-21 574-228-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BURNETTSVL IN
2014-03-21 574-244-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NO WEBSTER IN
2014-03-21 574-275-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SYRACUSE IN
2014-03-21 574-281-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARGOS IN
2014-03-21 574-328-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BURKET IN
2014-03-21 574-348-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 HAMLET IN
2014-03-21 574-376-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WARSAW IN
2014-03-21 574-380-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ATWOOD IN
2014-03-20 574-253-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEESBURG IN
2014-03-20 574-349-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GOSHEN IN
2014-03-04 574-218-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2014-03-04 574-218-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2014-03-03 574-401-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2014-03-03 574-401-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2014-03-03 574-401-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2014-02-26 574-327-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2014-02-26 574-327-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2014-02-26 574-703-4XXX 4000–4999Assigned METROPCS, INC. 5562 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.