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 510
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-07-03 | 510-518-4XXX | 4000–4999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | FRNK MAIN | CA |
| 2018-07-03 | 510-571-5XXX | 5000–5999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | HAYWARD | CA |
| 2018-07-03 | 510-607-6XXX | 6000–6999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | OKLD MN-PD | CA |
| 2018-07-03 | 510-609-0XXX | 0000–0999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | RICHMOND | CA |
| 2018-07-03 | 510-650-4XXX | 4000–4999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | ELSBR-PINL | CA |
| 2018-07-03 | 510-726-5XXX | 5000–5999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | CROCKETT | CA |
| 2018-07-03 | 510-738-5XXX | 5000–5999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | FRNK OLIVR | CA |
| 2018-07-03 | 510-955-5XXX | 5000–5999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | OKLD TRNID | CA |
| 2018-06-22 | 510-989-0XXX | 0000–0999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | OKLD BKLY | 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.