NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

34 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2011-05-20 219-370-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WHITING IN
2011-05-20 219-374-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C CEDAR LAKE IN
2011-05-20 219-506-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MOROCCO IN
2011-05-20 219-525-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MERRILLVL IN
2011-05-20 219-992-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C LAKE VLG IN
2011-05-03 219-934-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F HIGHLAND IN
2011-04-26 219-262-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D MICHIGANCY IN
2011-04-19 219-945-6XXX 6000–6999Assigned METROPCS, INC. 5562 HOBART IN
2011-04-07 219-262-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MICHIGANCY IN
2011-04-06 219-299-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 VALPARAISO IN
2011-03-07 219-608-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA PORTE IN
2011-02-18 219-200-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-18 219-200-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-15 219-850-3XXX 3000–3999Assigned METROPCS, INC. 5562 PORTAGE IN
2011-02-11 219-292-6XXX 6000–6999Assigned METROPCS, INC. 5562 GARY IN
2011-02-11 219-292-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-292-9XXX 9000–9999Assigned METROPCS, INC. 5562 GARY IN
2011-02-11 219-293-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-293-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-293-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-293-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-293-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-359-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-359-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-359-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-359-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-11 219-359-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GARY IN
2011-02-07 219-779-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F CROWNPOINT IN
2011-02-04 219-379-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LA PORTE IN
2011-01-21 219-310-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CROWNPOINT IN
2011-01-21 219-310-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CROWNPOINT IN
2011-01-20 219-359-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 GARY IN
2011-01-06 219-299-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 VALPARAISO IN
2010-12-14 219-513-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 HIGHLAND IN
2010-11-10 219-229-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MICHIGANCY IN
2010-11-05 219-299-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VALPARAISO IN
2010-11-01 219-554-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F HAMMOND IN
2010-11-01 219-595-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F HIGHLAND IN
2010-10-29 219-292-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F GARY IN
2010-10-29 219-627-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F ST JOHN IN
2010-10-14 219-225-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J LOWELL IN
2010-10-08 219-252-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 VALPARAISO IN
2010-10-07 219-262-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D MICHIGANCY IN
2010-10-07 219-262-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D MICHIGANCY IN
2010-10-07 219-262-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MICHIGANCY IN
2010-09-29 219-413-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2010-09-21 219-232-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F CEDAR LAKE IN
2010-09-15 219-299-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J VALPARAISO IN
2010-09-14 219-230-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 HAMMOND IN
2010-09-14 219-285-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MOROCCO IN

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.