NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 636
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-05-14 | 636-319-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | MO |
| 2016-12-01 | 636-755-6XXX | 6000–6999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | MO |
| 2011-03-02 | 636-385-1XXX | 1000–1999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | OFALLON | MO |
| 2010-02-01 | 636-474-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | OFALLON | MO |
| 2009-11-04 | 636-542-7XXX | 7000–7999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | OFALLON | MO |
| 2007-09-21 | 636-366-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | MOSCOW ML | MO |
| 2007-09-21 | 636-695-5XXX | 5000–5999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | MO |
| 2007-09-21 | 636-798-5XXX | 5000–5999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DEFIANCE | MO |
| 2007-09-21 | 636-887-9XXX | 9000–9999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WENTZVILLE | MO |
| 2007-09-05 | 636-235-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WARRENTON | MO |
| 2007-01-15 | 636-355-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | FOLEY | MO |
| 2007-01-15 | 636-782-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | HOLSTEIN | MO |
| 2007-01-15 | 636-791-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WRIGHTCITY | MO |
| 2006-10-12 | 636-242-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | MARTHASVL | MO |
| 2006-10-12 | 636-377-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WARRENTON | MO |
| 2006-06-02 | 636-695-4XXX | 4000–4999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | MO |
| 2005-12-28 | 636-887-4XXX | 4000–4999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WENTZVILLE | MO |
| 2005-02-07 | 636-887-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WENTZVILLE | MO |
| 2005-01-21 | 636-755-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | MO |
| 2005-01-21 | 636-755-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | MO |
| 2004-08-16 | 636-695-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | MO |
| 2003-04-03 | 636-695-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | 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.