NumberResearchThousands-blocks in 410-497
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 410-497 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 |
|---|---|---|---|---|---|---|---|
| — | 410-497-0XXX | 0000–0999 | Reserved | COMCAST IP PHONE, LLC | 318J | PARKVILLE | MD |
| 2007-03-21 | 410-497-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PARKVILLE | MD |
| 2008-07-21 | 410-497-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | PARKVILLE | MD |
| 2006-03-07 | 410-497-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | PARKVILLE | MD |
| 2009-01-13 | 410-497-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | PARKVILLE | MD |
| 2007-07-27 | 410-497-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | PARKVILLE | MD |
| 2010-03-22 | 410-497-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | PARKVILLE | MD |
| 2008-11-12 | 410-497-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | PARKVILLE | MD |
| 2010-09-28 | 410-497-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MD | 071F | PARKVILLE | MD |
| 2012-11-08 | 410-497-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | PARKVILLE | 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.