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 838
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-05-28 | 838-287-5XXX | 5000–5999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | BALLSTNSPA | NY |
| 2024-05-28 | 838-400-5XXX | 5000–5999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | ROUND LAKE | NY |
| 2022-10-24 | 838-385-0XXX | 0000–0999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | MINEVILLE | NY |
| 2021-07-30 | 838-224-1XXX | 1000–1999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | WELLS | NY |
| 2021-07-30 | 838-256-1XXX | 1000–1999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | LKPLEASANT | NY |
| 2020-09-14 | 838-204-5XXX | 5000–5999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | HAMPTON | NY |
| 2020-09-14 | 838-205-5XXX | 5000–5999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | VALLEY FLS | NY |
| 2020-09-14 | 838-438-5XXX | 5000–5999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | SALEM | NY |
| 2020-09-14 | 838-468-5XXX | 5000–5999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | WHITEHALL | NY |
| 2020-09-14 | 838-766-5XXX | 5000–5999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | WARRENSBG | NY |
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.