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 661
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2012-07-16 | 661-434-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | PLDL PLDL | CA |
| 2010-04-23 | 661-670-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | SNCA NHCS | CA |
| 2009-11-24 | 661-382-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | PLDL PLDL | CA |
| 2009-11-24 | 661-382-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | PLDL PLDL | CA |
| 2009-04-22 | 661-621-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | SNCA SGCC | CA |
| 2008-06-02 | 661-200-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | SNCA NHCS | CA |
| 2008-04-02 | 661-902-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | LANCASTER | CA |
| 2008-01-21 | 661-802-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | LANCASTER | CA |
| 2007-10-31 | 661-949-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | LANCASTER | CA |
| 2007-09-25 | 661-414-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | SNCA NHCS | CA |
| 2007-05-29 | 661-476-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | SNCA NHCS | CA |
| 2006-11-07 | 661-902-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | LANCASTER | CA |
| 2005-09-16 | 661-702-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | SNCA NHCS | 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.