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
2008-01-04 779-423-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2008-01-04 779-423-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2008-01-04 779-423-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2008-01-04 779-875-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2008-01-04 779-875-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2007-11-16 779-348-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2007-10-26 779-348-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2007-10-26 779-348-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2007-09-21 779-348-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2007-09-21 779-348-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2007-09-21 779-348-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2007-08-28 779-368-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J NEWMILFORD IL
2007-08-17 779-232-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WILMINGTON IL
2007-08-15 779-552-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BELVIDERE IL
2007-08-14 779-423-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2007-08-14 779-423-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2007-08-14 779-423-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ROCKFORD IL
2007-08-13 779-545-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J MT MORRIS IL
2007-07-24 779-537-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2007-07-24 779-537-6XXX 6000–6999Assigned METROPCS, INC. 5562 ROCKFORD IL
2007-07-24 779-537-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2007-07-24 779-537-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2007-07-24 779-537-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2007-07-16 779-875-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-07-16 779-875-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-07-16 779-875-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-07-16 779-875-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-07-16 779-875-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-07-16 779-875-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-07-16 779-875-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-07-02 779-435-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 JOLIET IL
2007-06-20 779-348-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROCKFORD IL
2007-06-12 779-232-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WILMINGTON IL
2007-06-07 779-552-0XXX 0000–0999Assigned DIGITAL NETWORK ACCESS COMMUNICATIONS, INC. - IL 972C BELVIDERE IL
2007-06-06 779-537-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-06-06 779-537-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-05-15 779-435-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 JOLIET IL
2007-05-09 779-382-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GENOA IL
2007-03-29 779-475-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SO BELOIT IL
2007-03-29 779-537-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-03-29 779-537-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-03-29 779-537-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2007-03-26 779-435-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-03-26 779-435-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-03-26 779-435-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 JOLIET IL
2007-02-09 779-435-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J JOLIET IL
2006-11-17 779-435-6XXX 6000–6999Assigned ILLINOIS BELL TEL CO 9329 JOLIET IL
2006-11-17 779-435-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 JOLIET IL
2006-11-17 779-435-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 JOLIET 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.