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 724
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-12-26 | 724-597-1XXX | 1000–1999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | CANONSBURG | PA |
| 2012-12-20 | 724-909-7XXX | 7000–7999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | FINLEYVL | PA |
| 2012-08-06 | 724-597-6XXX | 6000–6999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | CANONSBURG | PA |
| 2012-04-16 | 724-485-6XXX | 6000–6999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | CANONSBURG | PA |
| 2011-12-15 | 724-485-7XXX | 7000–7999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | CANONSBURG | PA |
| 2011-04-12 | 724-268-7XXX | 7000–7999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | BELLEVRNON | PA |
| 2011-04-12 | 724-828-7XXX | 7000–7999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | MIDWAY | PA |
| 2010-03-30 | 724-276-7XXX | 7000–7999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | CHARLEROI | PA |
| 2008-08-25 | 724-579-7XXX | 7000–7999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | WASHINGTON | PA |
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.