NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 864-448

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 864-448 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 864 blocks

Most active assignees, all time — NPA 864
NEW CINGULAR WIRELESS PCS, LLC - GA 4
TELEPORT COMMUNICATIONS AMERICA SC- LLC 1
PAETEC ITEL, LLC 1
ONVOY, LLC - SC 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 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
2016-06-17 864-448-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - SC 077F GREENVILLE SC
2016-07-22 864-448-1XXX 1000–1999Assigned ONVOY, LLC - SC 548E GREENVILLE SC
2016-08-19 864-448-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C GREENVILLE SC
2016-03-21 864-448-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC 8534 GREENVILLE SC
2016-06-24 864-448-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2016-04-15 864-448-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J GREENVILLE SC
2016-06-24 864-448-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2016-06-14 864-448-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA SC- LLC 635C GREENVILLE SC
2016-06-24 864-448-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC
2016-06-24 864-448-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENVILLE SC

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.