NumberResearchThousands-blocks in 870-406
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 870-406 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 870 blocks
Most active assignees, all time — NPA 870
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 870-406-0XXX | 0000–0999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | GURDON | AR |
| — | 870-406-1XXX | 1000–1999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | GURDON | AR |
| 2011-11-09 | 870-406-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | GURDON | AR |
| 2013-12-30 | 870-406-3XXX | 3000–3999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | GURDON | AR |
| 2015-01-16 | 870-406-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | GURDON | AR |
| 2015-09-28 | 870-406-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | GURDON | AR |
| 2016-08-25 | 870-406-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | GURDON | AR |
| — | 870-406-7XXX | 7000–7999 | Available | GURDON | AR | ||
| 2017-02-01 | 870-406-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | GURDON | AR |
| 2014-07-11 | 870-406-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GURDON | AR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.