NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-09-07 | 510-571-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | HAYWARD | CA |
| 2016-01-19 | 510-319-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | FRNK OLIVR | CA |
| 2015-07-20 | 510-844-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD MN-PD | CA |
| 2014-12-26 | 510-361-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | HAYWARD | CA |
| 2014-06-16 | 510-897-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | FRNK OLIVR | CA |
| 2013-09-06 | 510-957-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD TRNID | CA |
| 2013-05-10 | 510-398-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | HAYWARD | CA |
| 2013-01-31 | 510-298-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | FRNK MAIN | CA |
| 2012-10-26 | 510-597-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD MN-PD | CA |
| 2011-07-14 | 510-874-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD MN-PD | CA |
| 2011-01-04 | 510-730-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | RICHMOND | CA |
| 2010-10-25 | 510-771-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | FRNK OLIVR | CA |
| 2010-05-17 | 510-460-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | HAYWARD | CA |
| 2009-12-10 | 510-227-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD ALMD | CA |
| 2009-11-09 | 510-431-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | FRNK GRNLF | CA |
| 2009-07-23 | 510-924-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD TRNID | CA |
| 2009-06-24 | 510-788-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD MN-PD | CA |
| 2009-04-16 | 510-371-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | FRNK MAIN | CA |
| 2009-04-16 | 510-488-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD FRTVL | CA |
| 2008-11-10 | 510-423-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | OKLD BKLY | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.