NumberResearchThousands-blocks in 918-443
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 918-443 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 918 blocks
Most active assignees, all time — NPA 918
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-11-09 | 918-443-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | CLAREMORE | OK |
| — | 918-443-1XXX | 1000–1999 | Reserved | SOUTHWESTERN BELL | 9533 | CLAREMORE | OK |
| — | 918-443-2XXX | 2000–2999 | Reserved | SOUTHWESTERN BELL | 9533 | CLAREMORE | OK |
| 2023-03-15 | 918-443-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | CLAREMORE | OK |
| 2023-04-24 | 918-443-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OK | 409F | CLAREMORE | OK |
| 2023-05-23 | 918-443-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLAREMORE | OK |
| — | 918-443-6XXX | 6000–6999 | Reserved | SOUTHWESTERN BELL | 9533 | CLAREMORE | OK |
| 2011-11-09 | 918-443-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | CLAREMORE | OK |
| 2024-10-03 | 918-443-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | CLAREMORE | OK |
| 2022-03-12 | 918-443-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLAREMORE | OK |
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.