NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

28 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2015-08-10 302-501-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - DE 7220 NEW CASTLE DE
2015-08-05 302-515-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J GEORGETOWN DE
2015-07-27 302-877-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J LAUREL DE
2015-07-23 302-779-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HARTLY DE
2015-07-16 302-450-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DOVER DE
2015-07-09 302-318-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - DE 7220 NEWARK DE
2015-07-09 302-516-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - DE 7220 WILMINGTON DE
2015-07-01 302-278-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2015-07-01 302-516-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILMINGTON DE
2015-06-30 302-518-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2015-06-30 302-518-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2015-06-30 302-600-2XXX 2000–2999Assigned ONVOY, LLC - DE 969E WILMINGTON DE
2015-06-30 302-600-3XXX 3000–3999Assigned ONVOY, LLC - DE 969E WILMINGTON DE
2015-06-30 302-600-4XXX 4000–4999Assigned ONVOY, LLC - DE 969E WILMINGTON DE
2015-06-30 302-600-5XXX 5000–5999Assigned ONVOY, LLC - DE 969E WILMINGTON DE
2015-06-30 302-600-7XXX 7000–7999Assigned ONVOY, LLC - DE 969E WILMINGTON DE
2015-06-30 302-600-8XXX 8000–8999Assigned ONVOY, LLC - DE 969E WILMINGTON DE
2015-06-30 302-600-9XXX 9000–9999Assigned ONVOY, LLC - DE 969E WILMINGTON DE
2015-06-26 302-310-5XXX 5000–5999Assigned ONVOY, LLC - DE 969E DOVER DE
2015-06-26 302-310-6XXX 6000–6999Assigned ONVOY, LLC - DE 969E DOVER DE
2015-06-26 302-401-6XXX 6000–6999Assigned ONVOY, LLC - DE 969E DOVER DE
2015-06-25 302-900-3XXX 3000–3999Assigned ONVOY, LLC - DE 969E CAMDEN DE
2015-06-25 302-900-4XXX 4000–4999Assigned ONVOY, LLC - DE 969E CAMDEN DE
2015-06-25 302-900-5XXX 5000–5999Assigned ONVOY, LLC - DE 969E CAMDEN DE
2015-06-25 302-900-6XXX 6000–6999Assigned ONVOY, LLC - DE 969E CAMDEN DE
2015-06-25 302-900-7XXX 7000–7999Assigned ONVOY, LLC - DE 969E CAMDEN DE
2015-06-23 302-510-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 WILMINGTON DE
2015-06-23 302-510-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 WILMINGTON DE
2015-06-22 302-318-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J NEWARK DE
2015-06-22 302-513-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2015-06-18 302-900-2XXX 2000–2999Assigned ONVOY, LLC - DE 969E CAMDEN DE
2015-06-17 302-518-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - DE 4801 WILMINGTON DE
2015-06-15 302-516-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WILMINGTON DE
2015-06-02 302-278-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2015-05-29 302-518-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2015-05-29 302-518-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2015-05-29 302-900-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 CAMDEN DE
2015-05-28 302-257-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F DOVER DE
2015-05-28 302-278-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F REHOBOTH DE
2015-05-28 302-570-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F HARTLY DE
2015-05-28 302-715-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F LAUREL DE
2015-05-28 302-751-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F FREDERICA DE
2015-05-27 302-401-3XXX 3000–3999Assigned METROPCS, INC. 5562 DOVER DE
2015-05-14 302-696-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - DE 7220 MIDDLETOWN DE
2015-05-13 302-503-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MILFORD DE
2015-05-12 302-505-7XXX 7000–7999Assigned ONVOY, LLC - DE 969E CAMDEN DE
2015-05-11 302-402-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F OCEAN VIEW DE
2015-05-11 302-404-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F SEAFORD DE
2015-05-11 302-564-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F SELBYVILLE DE
2015-05-08 302-219-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F GREENWOOD DE

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.