NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

10 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 779
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6
8X8, INC. 2
INTRADO COMMUNICATIONS, LLC 1
BANDWIDTH.COM CLEC, LLC - IL 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
2016-11-18 779-915-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-18 779-915-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-18 779-915-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-18 779-915-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-18 779-915-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-18 779-915-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-11 779-713-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-11 779-777-4XXX 4000–4999Assigned METROPCS, INC. 5562 DE KALB IL
2016-11-09 779-212-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2016-11-09 779-212-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2016-11-09 779-552-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 BELVIDERE IL
2016-11-09 779-777-8XXX 8000–8999Assigned METROPCS, INC. 5562 DE KALB IL
2016-11-03 779-239-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PRINCETON IL
2016-11-01 779-931-9XXX 9000–9999Assigned FRONTIER NORTH, INC. - IL 1015 SANDWICH IL
2016-10-04 779-400-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DE KALB IL
2016-09-28 779-230-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2016-09-27 779-301-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANKAKEE IL
2016-09-23 779-702-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2016-09-21 779-777-9XXX 9000–9999Assigned METROPCS, INC. 5562 DE KALB IL
2016-09-08 779-801-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 KANKAKEE IL
2016-09-08 779-801-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 KANKAKEE IL
2016-09-07 779-210-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2016-09-02 779-301-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C KANKAKEE IL
2016-09-01 779-254-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRANKFORT IL
2016-08-26 779-702-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 JOLIET IL
2016-08-26 779-804-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PONTIAC IL
2016-08-26 779-970-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2016-08-23 779-239-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRINCETON IL
2016-07-28 779-212-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE KALB IL
2016-07-22 779-701-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANKAKEE IL
2016-07-22 779-901-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARENGO IL
2016-07-21 779-301-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E KANKAKEE IL
2016-07-21 779-702-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E JOLIET IL
2016-07-21 779-713-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E WOODSTOCK IL
2016-07-13 779-861-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DIXON IL
2016-07-13 779-939-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2016-07-13 779-939-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2016-07-11 779-252-0XXX 0000–0999Assigned IP HORIZON LLC 515J PLAINFIELD IL
2016-07-11 779-301-1XXX 1000–1999Assigned IP HORIZON LLC 515J KANKAKEE IL
2016-07-11 779-302-9XXX 9000–9999Assigned IP HORIZON LLC 515J WOODSTOCK IL
2016-07-11 779-703-8XXX 8000–8999Assigned IP HORIZON LLC 515J JOLIET IL
2016-07-08 779-513-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2016-07-08 779-513-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2016-07-08 779-513-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2016-07-01 779-717-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SPRING VLY IL
2016-06-28 779-252-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PLAINFIELD IL
2016-06-23 779-713-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 WOODSTOCK IL
2016-06-21 779-601-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LA SALLE IL
2016-06-14 779-713-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WOODSTOCK IL
2016-06-14 779-901-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MARENGO IL

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.