NumberResearchThousands-blocks in 816-343
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 816-343 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 816 blocks
Most active assignees, all time — NPA 816
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-09-22 | 816-343-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SMITHVILLE | MO |
| 2006-03-13 | 816-343-1XXX | 1000–1999 | Assigned | LEVEL 3 TELECOM OF KANSAS CITY, LLC - MO | 7589 | SMITHVILLE | MO |
| 2006-10-17 | 816-343-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SMITHVILLE | MO |
| 2024-08-15 | 816-343-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SMITHVILLE | MO |
| 2010-08-27 | 816-343-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SMITHVILLE | MO |
| 2017-04-28 | 816-343-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SMITHVILLE | MO |
| 2010-03-23 | 816-343-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SMITHVILLE | MO |
| 2009-08-03 | 816-343-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | SMITHVILLE | MO |
| 2011-01-13 | 816-343-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SMITHVILLE | MO |
| 2017-04-28 | 816-343-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SMITHVILLE | MO |
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.