NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

28 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 302
NEW CINGULAR WIRELESS PCS, LLC - DC 21
ONVOY, LLC - DE 2
EXIANT COMMUNICATIONS LLC 2
OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 1
BANDWIDTH.COM CLEC, LLC - DE 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
2014-06-05 302-404-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F SEAFORD DE
2014-06-05 302-404-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F SEAFORD DE
2014-06-05 302-503-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F MILFORD DE
2014-06-05 302-503-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F MILFORD DE
2014-06-04 302-219-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F GREENWOOD DE
2014-06-04 302-219-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F GREENWOOD DE
2014-06-04 302-313-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F LEWES DE
2014-06-04 302-481-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F GUMBORO DE
2014-06-04 302-715-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F LAUREL DE
2014-06-04 302-786-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F HARRINGTON DE
2014-06-02 302-307-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F HOCKESSIN DE
2014-06-02 302-307-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F HOCKESSIN DE
2014-05-29 302-508-1XXX 1000–1999Assigned IP HORIZON LLC 515J SMYRNA DE
2014-05-28 302-318-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - DE 7220 NEWARK DE
2014-05-28 302-318-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - DE 7220 NEWARK DE
2014-05-28 302-505-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 CAMDEN DE
2014-05-23 302-260-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REHOBOTH DE
2014-05-23 302-313-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEWES DE
2014-05-23 302-314-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MIDDLETOWN DE
2014-05-23 302-401-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 DOVER DE
2014-05-23 302-404-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SEAFORD DE
2014-05-23 302-440-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DELAWARECY DE
2014-05-23 302-721-8XXX 8000–8999Assigned IP HORIZON LLC 515J BRIDGEVL DE
2014-05-23 302-956-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRIDGEVL DE
2014-05-23 302-988-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SELBYVILLE DE
2014-05-22 302-212-1XXX 1000–1999Assigned IP HORIZON LLC 515J REHOBOTH DE
2014-05-22 302-213-8XXX 8000–8999Assigned IP HORIZON LLC 515J DOVER DE
2014-05-22 302-217-9XXX 9000–9999Assigned IP HORIZON LLC 515J GEORGETOWN DE
2014-05-22 302-219-8XXX 8000–8999Assigned IP HORIZON LLC 515J GREENWOOD DE
2014-05-22 302-273-9XXX 9000–9999Assigned IP HORIZON LLC 515J NEWARK DE
2014-05-22 302-281-8XXX 8000–8999Assigned IP HORIZON LLC 515J HOLLY OAK DE
2014-05-22 302-307-8XXX 8000–8999Assigned IP HORIZON LLC 515J HOCKESSIN DE
2014-05-22 302-313-8XXX 8000–8999Assigned IP HORIZON LLC 515J LEWES DE
2014-05-22 302-314-8XXX 8000–8999Assigned IP HORIZON LLC 515J MIDDLETOWN DE
2014-05-22 302-316-8XXX 8000–8999Assigned IP HORIZON LLC 515J MILLSBORO DE
2014-05-22 302-317-8XXX 8000–8999Assigned IP HORIZON LLC 515J NEW CASTLE DE
2014-05-22 302-364-8XXX 8000–8999Assigned IP HORIZON LLC 515J DAGSBORO DE
2014-05-22 302-387-8XXX 8000–8999Assigned IP HORIZON LLC 515J CAMDEN DE
2014-05-22 302-402-8XXX 8000–8999Assigned IP HORIZON LLC 515J OCEAN VIEW DE
2014-05-22 302-404-8XXX 8000–8999Assigned IP HORIZON LLC 515J SEAFORD DE
2014-05-22 302-440-8XXX 8000–8999Assigned IP HORIZON LLC 515J DELAWARECY DE
2014-05-22 302-481-8XXX 8000–8999Assigned IP HORIZON LLC 515J GUMBORO DE
2014-05-22 302-498-8XXX 8000–8999Assigned IP HORIZON LLC 515J WILMINGTON DE
2014-05-22 302-527-8XXX 8000–8999Assigned IP HORIZON LLC 515J FELTON DE
2014-05-22 302-549-8XXX 8000–8999Assigned IP HORIZON LLC 515J ANGOLA DE
2014-05-22 302-564-8XXX 8000–8999Assigned IP HORIZON LLC 515J SELBYVILLE DE
2014-05-22 302-570-1XXX 1000–1999Assigned IP HORIZON LLC 515J HARTLY DE
2014-05-22 302-643-8XXX 8000–8999Assigned IP HORIZON LLC 515J MILTON DE
2014-05-22 302-685-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2014-05-22 302-685-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE

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.