NumberResearchThousands-blocks in 636-887
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 636-887 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 636 blocks
Most active assignees, all time — NPA 636
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2004-12-14 | 636-887-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WENTZVILLE | MO |
| 2005-01-25 | 636-887-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2005-11-16 | 636-887-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WENTZVILLE | MO |
| 2005-02-07 | 636-887-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WENTZVILLE | MO |
| 2005-12-28 | 636-887-4XXX | 4000–4999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WENTZVILLE | MO |
| 2007-01-18 | 636-887-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2007-01-18 | 636-887-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2026-06-11 | 636-887-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2007-07-25 | 636-887-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | WENTZVILLE | MO |
| 2007-09-21 | 636-887-9XXX | 9000–9999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WENTZVILLE | 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.