NumberResearchThousands-blocks in 743-227
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 743-227 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 743 blocks
Most active assignees, all time — NPA 743
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2019-07-17 | 743-227-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | COLERIDGE | NC |
| — | 743-227-1XXX | 1000–1999 | Available | COLERIDGE | NC | ||
| — | 743-227-2XXX | 2000–2999 | Available | COLERIDGE | NC | ||
| — | 743-227-3XXX | 3000–3999 | Available | COLERIDGE | NC | ||
| — | 743-227-4XXX | 4000–4999 | Available | COLERIDGE | NC | ||
| — | 743-227-5XXX | 5000–5999 | Available | COLERIDGE | NC | ||
| — | 743-227-6XXX | 6000–6999 | Available | COLERIDGE | NC | ||
| 2025-07-09 | 743-227-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COLERIDGE | NC |
| — | 743-227-8XXX | 8000–8999 | Available | COLERIDGE | NC | ||
| — | 743-227-9XXX | 9000–9999 | Available | COLERIDGE | NC |
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.