NumberResearchThousands-blocks in 724-597
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 724-597 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 724 blocks
Most active assignees, all time — NPA 724
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-12-17 | 724-597-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CANONSBURG | PA |
| 2018-12-26 | 724-597-1XXX | 1000–1999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | CANONSBURG | PA |
| 2014-11-20 | 724-597-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | CANONSBURG | PA |
| 2021-12-17 | 724-597-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CANONSBURG | PA |
| 2025-10-29 | 724-597-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CANONSBURG | PA |
| — | 724-597-5XXX | 5000–5999 | Available | CANONSBURG | PA | ||
| 2012-08-06 | 724-597-6XXX | 6000–6999 | Assigned | CITYNET PENNSYLVANIA, LLC - PA | 657B | CANONSBURG | PA |
| 2003-07-16 | 724-597-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | CANONSBURG | PA |
| 2023-05-18 | 724-597-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | CANONSBURG | PA |
| 2024-01-12 | 724-597-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CANONSBURG | 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.