NumberResearchThousands-blocks in 410-618
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
The ten 1,000-number thousand-blocks inside prefix 410-618 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 410 blocks
Most active assignees, all time — NPA 410
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2012-09-12 | 410-618-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MD | 876D | PERRYVILLE | MD |
| 2014-07-01 | 410-618-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MD | 876D | PERRYVILLE | MD |
| 2011-11-09 | 410-618-2XXX | 2000–2999 | Assigned | IDT AMERICA, CORP. - MD | 228C | PERRYVILLE | MD |
| 2015-05-06 | 410-618-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | PERRYVILLE | MD |
| 2015-12-16 | 410-618-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MD | 876D | PERRYVILLE | MD |
| 2016-06-21 | 410-618-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | PERRYVILLE | MD |
| 2017-02-10 | 410-618-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | PERRYVILLE | MD |
| 2012-05-18 | 410-618-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | PERRYVILLE | MD |
| 2016-02-29 | 410-618-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | PERRYVILLE | MD |
| 2016-01-29 | 410-618-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MARYLAND, LLC | 568G | PERRYVILLE | MD |
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.