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 660
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-11-26 | 660-203-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | ALMA | MO |
| 2025-11-06 | 660-386-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | BUTLER | MO |
| 2025-07-11 | 660-831-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | MARSHALL | MO |
| 2025-06-13 | 660-720-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WAVERLY | MO |
| 2025-06-11 | 660-279-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | BLACKBURN | MO |
| 2024-12-04 | 660-356-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | HIGGINSVL | MO |
| 2024-12-04 | 660-463-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | CONCORDIA | MO |
| 2024-12-04 | 660-667-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | LEXINGTON | 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.