NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

34 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 219
NEW CINGULAR WIRELESS PCS, LLC - IL 16
ONVOY, LLC - IN 14
BANDWIDTH.COM CLEC, LLC - IN 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
INTRADO COMMUNICATIONS, LLC 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
2013-10-17 219-267-3XXX 3000–3999Assigned IP HORIZON LLC 515J CEDAR LAKE IN
2013-10-17 219-323-1XXX 1000–1999Assigned IP HORIZON LLC 515J CROWNPOINT IN
2013-10-17 219-370-4XXX 4000–4999Assigned IP HORIZON LLC 515J WHITING IN
2013-10-17 219-515-1XXX 1000–1999Assigned IP HORIZON LLC 515J DYER IN
2013-10-17 219-627-7XXX 7000–7999Assigned IP HORIZON LLC 515J ST JOHN IN
2013-10-17 219-648-0XXX 0000–0999Assigned IP HORIZON LLC 515J MERRILLVL IN
2013-10-17 219-702-1XXX 1000–1999Assigned IP HORIZON LLC 515J GARY IN
2013-10-17 219-802-1XXX 1000–1999Assigned IP HORIZON LLC 515J HAMMOND IN
2013-10-17 219-804-1XXX 1000–1999Assigned IP HORIZON LLC 515J E CHICAGO IN
2013-10-01 219-224-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 BROOK IN
2013-09-20 219-225-9XXX 9000–9999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F LOWELL IN
2013-09-12 219-323-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CROWNPOINT IN
2013-08-13 219-515-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F DYER IN
2013-07-23 219-344-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 LA PORTE IN
2013-07-12 219-515-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J DYER IN
2013-06-21 219-321-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F GARY IN
2013-06-17 219-702-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GARY IN
2013-06-14 219-321-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 GARY IN
2013-06-10 219-321-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GARY IN
2013-06-10 219-321-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GARY IN
2013-06-07 219-214-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 MICHIGANCY IN
2013-06-07 219-307-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 VALPARAISO IN
2013-06-05 219-515-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DYER IN
2013-06-05 219-802-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HAMMOND IN
2013-06-05 219-804-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J E CHICAGO IN
2013-05-30 219-237-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HIGHLAND IN
2013-05-30 219-660-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MERRILLVL IN
2013-05-29 219-315-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-29 219-315-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-29 219-315-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-29 219-315-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-29 219-315-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-29 219-316-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-22 219-276-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-22 219-276-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-22 219-276-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-22 219-276-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2013-05-22 219-302-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
2013-05-07 219-240-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
2013-05-07 219-240-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
2013-05-07 219-240-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
2013-05-07 219-240-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
2013-05-07 219-240-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
2013-04-29 219-307-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VALPARAISO IN
2013-04-29 219-525-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F MERRILLVL IN
2013-04-26 219-940-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 HOBART IN
2013-04-03 219-215-0XXX 0000–0999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F LAKE VLG IN
2013-04-03 219-240-8XXX 8000–8999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F GARY IN
2013-04-03 219-267-8XXX 8000–8999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F CEDAR LAKE IN
2013-04-03 219-276-8XXX 8000–8999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F E CHICAGO 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.