NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

28 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 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
2003-07-29 302-613-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - DE 4801 NEW CASTLE DE
2003-07-18 302-290-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILMINGTON DE
2003-07-01 302-222-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 CAMDEN DE
2003-07-01 302-528-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2003-07-01 302-528-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2003-07-01 302-528-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2003-07-01 302-841-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 GEORGETOWN DE
2003-06-06 302-250-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 WILMINGTON DE
2003-06-06 302-250-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 WILMINGTON DE
2003-06-06 302-250-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 WILMINGTON DE
2003-06-05 302-222-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 CAMDEN DE
2003-06-04 302-841-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 GEORGETOWN DE
2003-05-02 302-841-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 GEORGETOWN DE
2003-04-14 302-230-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILMINGTON DE
2003-04-14 302-241-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DOVER DE
2003-04-14 302-246-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLLY OAK DE
2003-04-14 302-286-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWARK DE
2003-04-14 302-327-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEW CASTLE DE
2003-04-08 302-290-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILMINGTON DE
2003-04-08 302-290-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILMINGTON DE
2003-03-26 302-430-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MILFORD DE
2003-03-04 302-381-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 GEORGETOWN DE
2003-03-04 302-841-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 GEORGETOWN DE
2003-02-20 302-449-2XXX 2000–2999Assigned VERIZON DELAWARE, INC. 9210 MIDDLETOWN DE
2003-02-13 302-290-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILMINGTON DE
2003-01-23 302-250-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - DE 4801 WILMINGTON DE

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.