NumberResearchThousands-blocks in 317-344
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 317-344 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 317 blocks
Most active assignees, all time — NPA 317
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-09-07 | 317-344-0XXX | 0000–0999 | Assigned | BHN IP ENABLED SERVICES, LLC | 045L | ZIONSVILLE | IN |
| — | 317-344-1XXX | 1000–1999 | Reserved | LEVEL 3 TELECOM OF INDIANA, LP - IN | 7060 | ZIONSVILLE | IN |
| 2007-09-11 | 317-344-2XXX | 2000–2999 | Assigned | BHN IP ENABLED SERVICES, LLC | 045L | ZIONSVILLE | IN |
| 2004-02-23 | 317-344-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | ZIONSVILLE | IN |
| 2007-02-13 | 317-344-4XXX | 4000–4999 | Assigned | LEVEL 3 TELECOM OF INDIANA, LP - IN | 7060 | ZIONSVILLE | IN |
| 2007-10-09 | 317-344-5XXX | 5000–5999 | Assigned | HANCOCK COMMUNICATIONS, INC. - IN | 7459 | ZIONSVILLE | IN |
| — | 317-344-6XXX | 6000–6999 | Assigned (pending) | ZIONSVILLE | IN | ||
| — | 317-344-7XXX | 7000–7999 | Reserved | LEVEL 3 TELECOM OF INDIANA, LP - IN | 7060 | ZIONSVILLE | IN |
| 2014-09-30 | 317-344-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IN | 097D | ZIONSVILLE | IN |
| 2008-10-29 | 317-344-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - IN | 105F | ZIONSVILLE | IN |
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.