NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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 309
VERSATEL LLC 2
EXIANT COMMUNICATIONS LLC 2
BANDWIDTH.COM CLEC, LLC - IL 2
AHOI LLC 2
OPENTACT INC. 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
2018-07-03 309-921-2XXX 2000–2999Assigned ONVOY, LLC 224C ROANOKE IL
2018-07-03 309-929-3XXX 3000–3999Assigned ONVOY, LLC 224C TREMONT IL
2018-07-03 309-965-4XXX 4000–4999Assigned ONVOY, LLC 224C GOODFIELD IL
2018-06-27 309-204-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING BAY IL
2018-06-27 309-388-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 KNOXVILLE IL
2018-06-20 309-885-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 PEKIN IL
2018-06-18 309-603-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHILLICOTH IL
2018-06-15 309-245-6XXX 6000–6999Assigned ONVOY, LLC 224C FARMINGTON IL
2018-06-15 309-247-8XXX 8000–8999Assigned ONVOY, LLC 224C SAN JOSE IL
2018-06-15 309-350-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-06-15 309-350-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-06-15 309-350-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-06-08 309-324-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2018-05-24 309-442-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BRIMFIELD IL
2018-05-16 309-524-3XXX 3000–3999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F MOLINE IL
2018-05-15 309-885-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEKIN IL
2018-04-27 309-498-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 HEYWORTH IL
2018-04-26 309-204-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING BAY IL
2018-04-13 309-324-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2018-04-13 309-324-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA IL
2018-04-12 309-885-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 PEKIN IL
2018-03-23 309-328-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NORTHPEKIN IL
2018-03-19 309-291-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MORTON IL
2018-03-19 309-481-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WASHINGTON IL
2018-03-15 309-327-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D PEORIA IL
2018-03-08 309-204-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING BAY IL
2018-03-08 309-204-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING BAY IL
2018-03-05 309-513-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALEDO IL
2018-03-05 309-513-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALEDO IL
2018-03-05 309-714-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GENESEO IL
2018-03-05 309-714-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GENESEO IL
2018-03-02 309-317-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-03-02 309-317-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-03-02 309-317-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2018-02-28 309-856-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 KEWANEE IL
2018-02-28 309-856-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 KEWANEE IL
2018-02-23 309-317-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND IL
2018-02-23 309-324-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J PEORIA IL
2018-02-20 309-304-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 EUREKA IL
2018-02-20 309-627-3XXX 3000–3999Assigned MTC COMMUNICATIONS, INC. - IL 342F BIGGSVILLE IL
2018-02-20 309-883-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 KEWANEE IL
2018-01-30 309-209-8XXX 8000–8999Assigned NUSO, LLC 551G MACOMB IL
2018-01-24 309-435-2XXX 2000–2999Assigned ONVOY, LLC 224C CANTON IL
2018-01-23 309-603-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHILLICOTH IL
2018-01-16 309-885-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEKIN IL
2018-01-11 309-869-7XXX 7000–7999Assigned ONVOY, LLC 224C LEWISTOWN IL
2017-12-28 309-733-3XXX 3000–3999Assigned ONVOY, LLC 224C GROVELAND IL
2017-12-19 309-507-4XXX 4000–4999Assigned UNITED STATES CELLULAR - IL 6265 GENESEO IL
2017-12-13 309-866-6XXX 6000–6999Assigned ONVOY, LLC 224C MORTON IL
2017-12-07 309-322-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PEORIA 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.