NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

11 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 401
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 4
ONVOY, LLC - RI 2
BANDWIDTH.COM CLEC, LLC - RI 2
TELNYX LLC 1
LEVEL 3 COMMUNICATIONS, LLC - RI 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
2013-12-05 401-602-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-12-05 401-602-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-12-05 401-602-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-12-05 401-602-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-12-05 401-602-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-11-27 401-999-7XXX 7000–7999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CUMBLND HL RI
2013-11-26 401-532-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7351 WOONSOCKET RI
2013-11-13 401-283-2XXX 2000–2999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2013-11-13 401-283-3XXX 3000–3999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2013-11-13 401-283-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2013-11-13 401-283-5XXX 5000–5999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2013-11-13 401-283-6XXX 6000–6999Assigned ONVOY, LLC - RI 977E PROVIDENCE RI
2013-10-15 401-636-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOONSOCKET RI
2013-10-04 401-834-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PAWTUCKET RI
2013-10-04 401-834-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PAWTUCKET RI
2013-09-20 401-423-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JAMESTOWN RI
2013-09-20 401-685-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TIVERTON RI
2013-09-19 401-391-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARWICK RI
2013-09-04 401-602-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-09-04 401-602-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-09-03 401-619-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J NEWPORT RI
2013-08-21 401-304-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W WARWICK RI
2013-08-14 401-491-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HOPEVALLEY RI
2013-08-05 401-318-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-08-05 401-318-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-06-26 401-430-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PROVIDENCE RI
2013-06-26 401-430-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PROVIDENCE RI
2013-06-26 401-430-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PROVIDENCE RI
2013-06-26 401-430-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PROVIDENCE RI
2013-06-26 401-430-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PROVIDENCE RI
2013-06-26 401-430-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PROVIDENCE RI
2013-06-26 401-834-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PAWTUCKET RI
2013-06-18 401-302-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-06-18 401-302-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-06-18 401-302-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 6389 PROVIDENCE RI
2013-05-29 401-239-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F NEWPORT RI
2013-05-29 401-515-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F NARRAGNSTT RI
2013-05-29 401-541-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F GREENWICH RI
2013-05-02 401-304-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W WARWICK RI
2013-05-02 401-391-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARWICK RI
2013-05-02 401-622-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTERLY RI
2013-05-02 401-710-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PASCOAG RI
2013-05-02 401-834-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PAWTUCKET RI
2013-04-08 401-433-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F PROVIDENCE RI
2013-04-08 401-433-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F PROVIDENCE RI
2013-04-08 401-437-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F PROVIDENCE RI
2013-04-08 401-437-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F PROVIDENCE RI
2013-04-02 401-297-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRISTOL RI
2013-04-01 401-856-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWPORT RI
2013-03-14 401-239-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWPORT RI

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.