NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 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 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
2017-11-03 779-244-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MCHENRY IL
2017-10-25 779-242-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J JOLIET IL
2017-10-23 779-246-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROCHELLE IL
2017-10-16 779-666-0XXX 0000–0999Assigned ONVOY, LLC 224C ROCKFORD IL
2017-10-16 779-666-1XXX 1000–1999Assigned ONVOY, LLC 224C ROCKFORD IL
2017-10-16 779-666-2XXX 2000–2999Assigned ONVOY, LLC 224C ROCKFORD IL
2017-10-16 779-666-3XXX 3000–3999Assigned ONVOY, LLC 224C ROCKFORD IL
2017-10-09 779-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2017-10-09 779-243-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRANKFORT IL
2017-10-09 779-244-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCHENRY IL
2017-10-04 779-666-6XXX 6000–6999Assigned ONVOY, LLC 224C ROCKFORD IL
2017-09-27 779-230-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 JOLIET IL
2017-09-27 779-230-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 JOLIET IL
2017-09-15 779-240-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANKAKEE IL
2017-09-06 779-239-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 PRINCETON IL
2017-08-21 779-222-1XXX 1000–1999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F SYCAMORE IL
2017-08-11 779-238-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2017-08-11 779-238-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2017-08-11 779-238-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2017-07-28 779-230-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2017-07-27 779-223-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ONARGA IL
2017-07-17 779-238-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROCKFORD IL
2017-06-13 779-230-4XXX 4000–4999Assigned ONVOY, LLC 224C JOLIET IL
2017-06-02 779-241-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MORRIS IL
2017-05-15 779-230-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOLIET IL
2017-05-15 779-254-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRANKFORT IL
2017-05-10 779-801-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 KANKAKEE IL
2017-04-26 779-717-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SPRING VLY IL
2017-04-26 779-717-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SPRING VLY IL
2017-04-26 779-717-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SPRING VLY IL
2017-04-12 779-254-8XXX 8000–8999Assigned TELNYX LLC 073H FRANKFORT IL
2017-04-12 779-303-1XXX 1000–1999Assigned TELNYX LLC 073H PLAINFIELD IL
2017-04-12 779-601-1XXX 1000–1999Assigned TELNYX LLC 073H LA SALLE IL
2017-04-12 779-713-6XXX 6000–6999Assigned TELNYX LLC 073H WOODSTOCK IL
2017-04-12 779-801-0XXX 0000–0999Assigned TELNYX LLC 073H KANKAKEE IL
2017-04-12 779-994-6XXX 6000–6999Assigned TELNYX LLC 073H CRYSTAL LK IL
2017-04-05 779-238-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2017-04-05 779-238-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROCKFORD IL
2017-04-04 779-240-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KANKAKEE IL
2017-03-20 779-803-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J NEW LENOX IL
2017-03-07 779-230-3XXX 3000–3999Assigned TELNYX LLC 073H JOLIET IL
2017-01-06 779-230-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 JOLIET IL
2017-01-04 779-601-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 LA SALLE IL
2016-12-27 779-970-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROCKFORD IL
2016-12-06 779-252-9XXX 9000–9999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 PLAINFIELD IL
2016-12-01 779-251-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DIXON IL
2016-11-18 779-915-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-18 779-915-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-18 779-915-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL
2016-11-18 779-915-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WOODSTOCK IL

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.