NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 919
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 455
NEW CINGULAR WIRELESS PCS, LLC - GA 426
BANDWIDTH.COM CLEC, LLC - NC 416
SUNCOM DBA T-MOBILE USA 387
LEVEL 3 COMMUNICATIONS, LLC - NC 222
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
2013-02-06 919-973-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K DURHAM NC
2013-02-06 919-973-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K DURHAM NC
2013-02-06 919-973-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K DURHAM NC
2013-02-06 919-973-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K DURHAM NC
2013-02-06 919-973-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K DURHAM NC
2013-02-06 919-973-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DURHAM NC
2013-02-06 919-977-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K RALEIGH NC
2013-02-06 919-977-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K RALEIGH NC
2013-02-06 919-977-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K RALEIGH NC
2013-02-06 919-977-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K RALEIGH NC
2013-02-06 919-977-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K RALEIGH NC
2013-02-06 919-977-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K RALEIGH NC
2013-02-06 919-977-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K RALEIGH NC
2013-01-29 919-670-9XXX 9000–9999Assigned SUNCOM DBA T-MOBILE USA 8645 RALEIGH NC
2013-01-24 919-527-8XXX 8000–8999Assigned SUNCOM DBA T-MOBILE USA 8645 RALEIGH NC
2013-01-18 919-252-6XXX 6000–6999Assigned UNITED STATES CELLULAR - NC 6282 GOLDSBORO NC
2013-01-18 919-276-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BROADWAY NC
2013-01-18 919-292-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SANFORD NC
2013-01-18 919-343-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OLIVIA NC
2013-01-04 919-864-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 DURHAM NC
2012-12-19 919-296-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 HILLSBORGH NC
2012-12-19 919-586-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 FUQUAYVRIN NC
2012-12-19 919-679-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 KNIGHTDALE NC
2012-12-19 919-893-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 MOUNTOLIVE NC
2012-11-30 919-864-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 DURHAM NC
2012-11-30 919-980-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 FOUR OAKS NC
2012-11-26 919-592-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RALEIGH NC
2012-11-26 919-592-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RALEIGH NC
2012-11-26 919-592-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RALEIGH NC
2012-11-26 919-916-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RALEIGH NC
2012-11-20 919-987-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J RALEIGH NC
2012-11-15 919-205-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NC 998E SMITHFIELD NC
2012-11-12 919-916-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 RALEIGH NC
2012-11-12 919-916-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 RALEIGH NC
2012-11-12 919-916-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 RALEIGH NC
2012-11-12 919-916-4XXX 4000–4999Assigned ONVOY, LLC - NC 638E RALEIGH NC
2012-11-12 919-916-6XXX 6000–6999Assigned ONVOY, LLC - NC 638E RALEIGH NC
2012-11-02 919-903-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 CHAPELHILL NC
2012-10-16 919-307-0XXX 0000–0999Assigned FRONTIER COMMUNICATIONS OF AMERICA, INC. - NC 440G RALEIGH NC
2012-10-16 919-948-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NC 3235 RALEIGH NC
2012-10-04 919-903-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 CHAPELHILL NC
2012-10-04 919-904-1XXX 1000–1999Assigned SUNCOM DBA T-MOBILE USA 8645 CHAPELHILL NC
2012-10-04 919-972-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 DURHAM NC
2012-09-27 919-927-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DURHAM NC
2012-09-27 919-927-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DURHAM NC
2012-09-27 919-927-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DURHAM NC
2012-09-27 919-927-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DURHAM NC
2012-09-27 919-927-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DURHAM NC
2012-09-27 919-927-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DURHAM NC
2012-09-27 919-927-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 7835 DURHAM NC

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.