NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 256-848

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 256-848 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 256 blocks

Most active assignees, all time — NPA 256
NEW CINGULAR WIRELESS PCS, LLC - GA 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 2
TELEPORT COMMUNICATIONS AMERICA, LLC - AL 1
ONVOY, LLC - AL 1
ONVOY SPECTRUM, LLC 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
2016-01-19 256-848-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ANNISTON AL
2013-06-19 256-848-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E ANNISTON AL
2019-11-19 256-848-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 ANNISTON AL
2019-12-18 256-848-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANNISTON AL
2018-03-20 256-848-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 ANNISTON AL
2021-06-02 256-848-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANNISTON AL
2024-04-22 256-848-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ANNISTON AL
2021-06-02 256-848-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ANNISTON AL
2019-04-24 256-848-8XXX 8000–8999Assigned CORETEL ALABAMA, INC. - AL 476F ANNISTON AL
— 256-848-9XXX 9000–9999Reserved BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ANNISTON AL

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.