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 657
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-05-04 | 657-319-0XXX | 0000–0999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | FULLERTON | CA |
| 2018-05-04 | 657-522-9XXX | 9000–9999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | YORBALINDA | CA |
| 2018-05-04 | 657-722-3XXX | 3000–3999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | GARDEN GRV | CA |
| 2018-04-26 | 657-213-5XXX | 5000–5999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | CYPRESS | CA |
| 2018-04-26 | 657-315-5XXX | 5000–5999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | PLACENTIA | CA |
| 2018-04-26 | 657-342-3XXX | 3000–3999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | HUNTITNBCH | CA |
| 2018-04-26 | 657-441-5XXX | 5000–5999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | WESTMINSTR | CA |
| 2018-04-26 | 657-478-4XXX | 4000–4999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | BREA | CA |
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.