NumberResearchThousands-blocks in 731-419
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 731-419 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 731 blocks
Most active assignees, all time — NPA 731
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-01-14 | 731-419-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF TENNESSEE, LLC - TN | 276F | RIPLEY | TN |
| 2014-03-27 | 731-419-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | RIPLEY | TN |
| 2005-12-06 | 731-419-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | RIPLEY | TN |
| 2009-04-24 | 731-419-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RIPLEY | TN |
| — | 731-419-4XXX | 4000–4999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | RIPLEY | TN |
| 2016-02-24 | 731-419-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | RIPLEY | TN |
| 2013-02-01 | 731-419-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | RIPLEY | TN |
| 2014-04-04 | 731-419-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RIPLEY | TN |
| 2016-02-24 | 731-419-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TN | 525E | RIPLEY | TN |
| 2017-02-27 | 731-419-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | RIPLEY | TN |
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.