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
2006-08-10 219-378-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN
2006-08-04 219-379-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LA PORTE IN
2006-08-04 219-707-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 VALPARAISO IN
2006-07-18 219-964-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 RENSSELAER IN
2006-07-17 219-671-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CROWNPOINT IN
2006-07-17 219-671-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CROWNPOINT IN
2006-06-27 219-455-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GARY IN
2006-06-21 219-628-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE IN
2006-06-21 219-888-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J GARY IN
2006-06-21 219-939-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GARY IN
2006-06-20 219-880-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GARY IN
2006-06-19 219-487-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C GARY IN
2006-06-19 219-803-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C HAMMOND IN
2006-06-16 219-627-0XXX 0000–0999Assigned FBN INDIANA, INC. - IN 4117 ST JOHN IN
2006-06-15 219-393-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA PORTE IN
2006-06-15 219-440-9XXX 9000–9999Assigned FBN INDIANA, INC. - IN 4117 DYER IN
2006-06-02 219-228-9XXX 9000–9999Assigned FBN INDIANA, INC. - IN 4117 HAMMOND IN
2006-06-02 219-354-9XXX 9000–9999Assigned FBN INDIANA, INC. - IN 4117 E CHICAGO IN
2006-06-02 219-390-0XXX 0000–0999Assigned FBN INDIANA, INC. - IN 4117 CEDAR LAKE IN
2006-06-02 219-655-3XXX 3000–3999Assigned FBN INDIANA, INC. - IN 4117 WHITING IN
2006-06-02 219-690-9XXX 9000–9999Assigned FBN INDIANA, INC. - IN 4117 LOWELL IN
2006-06-02 219-961-0XXX 0000–0999Assigned FBN INDIANA, INC. - IN 4117 HIGHLAND IN
2006-06-02 219-992-8XXX 8000–8999Assigned FBN INDIANA, INC. - IN 4117 LAKE VLG IN
2006-06-01 219-961-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 HIGHLAND IN
2006-05-26 219-210-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MICHIGANCY IN
2006-05-26 219-512-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GARY IN
2006-05-26 219-707-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VALPARAISO IN
2006-05-26 219-973-7XXX 7000–7999Assigned METROPCS, INC. 5562 HOBART IN
2006-05-19 219-977-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GARY IN
2006-05-15 219-488-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CROWNPOINT IN
2006-05-08 219-577-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CROWNPOINT IN
2006-05-05 219-390-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CEDAR LAKE IN
2006-04-28 219-354-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 E CHICAGO IN
2006-04-25 219-227-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K DYER IN
2006-04-25 219-378-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K E CHICAGO IN
2006-04-25 219-390-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K CEDAR LAKE IN
2006-04-25 219-472-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K MERRILLVL IN
2006-04-25 219-473-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K WHITING IN
2006-04-25 219-488-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K CROWNPOINT IN
2006-04-25 219-558-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K ST JOHN IN
2006-04-25 219-629-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K HAMMOND IN
2006-04-25 219-654-0XXX 0000–0999Assigned FBN INDIANA, INC. - IN 4117 LAKE STA IN
2006-04-25 219-951-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K GARY IN
2006-04-25 219-961-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K HIGHLAND IN
2006-04-18 219-364-7XXX 7000–7999Assigned FBN INDIANA, INC. - IN 4117 WHEELER IN
2006-04-18 219-728-3XXX 3000–3999Assigned FBN INDIANA, INC. - IN 4117 CHESTERTON IN
2006-04-18 219-733-3XXX 3000–3999Assigned FBN INDIANA, INC. - IN 4117 WANATAH IN
2006-04-18 219-754-9XXX 9000–9999Assigned FBN INDIANA, INC. - IN 4117 LA CROSSE IN
2006-04-18 219-766-9XXX 9000–9999Assigned FBN INDIANA, INC. - IN 4117 KOUTS IN
2006-04-18 219-767-8XXX 8000–8999Assigned FBN INDIANA, INC. - IN 4117 UNIONMILLS 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.