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
2007-11-27 574-214-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2007-11-27 574-855-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2007-11-27 574-855-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2007-11-20 574-855-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SOUTH BEND IN
2007-11-09 574-343-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ELKHART IN
2007-11-08 574-971-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GOSHEN IN
2007-10-16 574-376-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WARSAW IN
2007-10-15 574-835-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ROCHESTER IN
2007-10-05 574-304-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2007-10-05 574-312-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GOSHEN IN
2007-09-28 574-217-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2007-08-27 574-933-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLYMOUTH IN
2007-08-27 574-971-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J GOSHEN IN
2007-08-15 574-304-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2007-08-15 574-377-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEESBURG IN
2007-07-10 574-304-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 ELKHART IN
2007-07-10 574-312-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GOSHEN IN
2007-05-25 574-275-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SYRACUSE IN
2007-05-14 574-377-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LEESBURG IN
2007-03-22 574-214-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2007-03-22 574-214-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2007-03-22 574-214-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2007-03-22 574-302-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2007-03-22 574-485-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2007-03-22 574-485-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2007-03-21 574-344-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2007-03-21 574-344-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2007-03-21 574-485-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2007-03-21 574-601-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 LOGANSPORT IN
2007-03-08 574-847-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ROCHESTER IN
2007-02-27 574-343-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ELKHART IN
2007-02-15 574-312-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 GOSHEN IN
2007-02-13 574-520-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2007-02-13 574-520-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2007-02-12 574-822-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MIDDLEBURY IN
2007-01-26 574-333-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2007-01-26 574-333-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART IN
2007-01-26 574-742-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSCEOLA IN
2007-01-26 574-855-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SOUTH BEND IN
2007-01-15 574-344-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2007-01-15 574-344-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2007-01-15 574-835-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCHESTER IN
2007-01-02 574-344-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 SOUTH BEND IN
2006-12-19 574-520-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SOUTH BEND IN
2006-11-24 574-344-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTH BEND IN
2006-11-21 574-485-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D SOUTH BEND IN
2006-11-15 574-992-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LOGANSPORT IN
2006-11-14 574-312-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J GOSHEN IN
2006-10-31 574-702-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOGANSPORT IN
2006-10-11 574-333-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELKHART 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.