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
2010-08-23 302-746-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLLY OAK DE
2010-08-23 302-763-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOCKESSIN DE
2010-08-23 302-763-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOCKESSIN DE
2010-08-23 302-766-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOCKESSIN DE
2010-08-23 302-797-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLLY OAK DE
2010-08-23 302-797-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLLY OAK DE
2010-08-05 302-497-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F LAUREL DE
2010-08-05 302-526-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F DOVER DE
2010-08-05 302-572-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F FREDERICA DE
2010-08-03 302-319-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2010-08-03 302-786-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J HARRINGTON DE
2010-07-15 302-416-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WILMINGTON DE
2010-07-15 302-416-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - DE 4801 WILMINGTON DE
2010-07-15 302-416-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - DE 4801 WILMINGTON DE
2010-07-15 302-500-8XXX 8000–8999Assigned MCC TELEPHONY OF THE MID-ATLANTIC, LLC - DE 826F GEORGETOWN DE
2010-07-15 302-524-8XXX 8000–8999Assigned MCC TELEPHONY OF THE MID-ATLANTIC, LLC - DE 826F SELBYVILLE DE
2010-07-15 302-549-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-ATLANTIC, LLC - DE 826F ANGOLA DE
2010-07-15 302-663-0XXX 0000–0999Assigned MCC TELEPHONY OF THE MID-ATLANTIC, LLC - DE 826F MILLSBORO DE
2010-07-15 302-709-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F NEWARK DE
2010-07-15 302-827-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-ATLANTIC, LLC - DE 826F LEWES DE
2010-07-15 302-927-0XXX 0000–0999Assigned MCC TELEPHONY OF THE MID-ATLANTIC, LLC - DE 826F DAGSBORO DE
2010-07-09 302-285-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F MIDDLETOWN DE
2010-07-09 302-727-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2010-07-09 302-727-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 REHOBOTH DE
2010-07-09 302-766-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HOCKESSIN DE
2010-07-08 302-415-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2010-07-07 302-616-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MID-ATLANTIC, LLC - DE 826F OCEAN VIEW DE
2010-07-02 302-319-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2010-07-02 302-439-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLLY OAK DE
2010-07-02 302-439-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLLY OAK DE
2010-07-02 302-439-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLLY OAK DE
2010-06-21 302-363-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 DOVER DE
2010-06-11 302-781-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - DE 7220 NEWARK DE
2010-06-04 302-261-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F DELAWARECY DE
2010-06-04 302-272-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F CAMDEN DE
2010-06-04 302-319-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F WILMINGTON DE
2010-06-04 302-319-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F WILMINGTON DE
2010-06-04 302-385-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F HOLLY OAK DE
2010-06-04 302-451-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F NEWARK DE
2010-06-04 302-613-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F NEW CASTLE DE
2010-06-04 302-729-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - DE 073F HOCKESSIN DE
2010-06-03 302-468-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2010-05-24 302-526-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J DOVER DE
2010-05-18 302-332-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 WILMINGTON DE
2010-05-13 302-595-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DELAWARECY DE
2010-05-13 302-595-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DELAWARECY DE
2010-05-13 302-595-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DELAWARECY DE
2010-05-10 302-327-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEW CASTLE DE
2010-05-10 302-367-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEW CASTLE DE
2010-05-10 302-689-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEW CASTLE 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.