NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

2 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 781
NEW CINGULAR WIRELESS PCS, LLC - DC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-10-12 781-602-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRAINTREE MA
2010-10-12 781-602-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRAINTREE MA
2010-10-12 781-602-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRAINTREE MA
2010-10-12 781-602-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRAINTREE MA
2010-10-12 781-602-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRAINTREE MA
2010-10-12 781-817-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRAINTREE MA
2010-10-12 781-917-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRAINTREE MA
2010-10-12 781-926-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRAINTREE MA
2010-10-01 781-217-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON MA
2010-10-01 781-217-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON MA
2010-09-22 781-247-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NEEDHAM MA
2010-09-22 781-304-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E WELLESLEY MA
2010-09-22 781-429-5XXX 5000–5999Assigned TC SYSTEMS, INC. 7135 NEEDHAM MA
2010-09-22 781-517-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E MELROSE MA
2010-09-10 781-378-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J SCITUATE MA
2010-09-10 781-602-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 BRAINTREE MA
2010-09-10 781-645-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J ARLINGTON MA
2010-09-09 781-404-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WOBURN MA
2010-09-03 781-806-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J SHARON MA
2010-09-02 781-296-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WALTHAM MA
2010-09-02 781-606-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MELROSE MA
2010-08-31 781-708-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J DEDHAM MA
2010-08-27 781-296-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2010-08-27 781-296-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2010-08-27 781-502-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MALDEN MA
2010-08-26 781-436-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J STOUGHTON MA
2010-08-26 781-719-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEEDHAM MA
2010-08-25 781-566-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MARSHFIELD MA
2010-08-23 781-620-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MELROSE MA
2010-08-17 781-269-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E NORWOOD MA
2010-08-17 781-428-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E BRAINTREE MA
2010-08-17 781-437-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E RANDOLPH MA
2010-08-17 781-670-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E READING MA
2010-08-17 781-816-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E SAUGUS MA
2010-08-11 781-569-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WOBURN MA
2010-08-03 781-879-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 LEXINGTON MA
2010-07-30 781-708-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2010-07-30 781-708-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2010-07-30 781-708-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2010-07-28 781-342-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E LYNNFIELD MA
2010-07-28 781-462-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E MELROSE MA
2010-07-28 781-797-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MA 990E MARBLEHEAD MA
2010-07-28 781-815-5XXX 5000–5999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F RANDOLPH MA
2010-07-28 781-872-7XXX 7000–7999Assigned PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F READING MA
2010-07-26 781-786-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2010-07-26 781-786-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J WALTHAM MA
2010-07-12 781-336-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KINGSTON MA
2010-07-12 781-425-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BURLINGTON MA
2010-07-12 781-996-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2010-06-28 781-902-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WALTHAM MA

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.