NumberResearchThousands-blocks in 724-236
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 724-236 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
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-09-09 | 724-236-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | LEECHBURG | PA |
| 2009-04-01 | 724-236-1XXX | 1000–1999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | LEECHBURG | PA |
| 2021-12-14 | 724-236-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | LEECHBURG | PA |
| 2012-06-12 | 724-236-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LEECHBURG | PA |
| 2017-05-16 | 724-236-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | LEECHBURG | PA |
| 2017-05-16 | 724-236-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | LEECHBURG | PA |
| 2013-01-22 | 724-236-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | LEECHBURG | PA |
| 2015-05-28 | 724-236-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LEECHBURG | PA |
| 2021-06-07 | 724-236-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | LEECHBURG | PA |
| 2015-07-17 | 724-236-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | LEECHBURG | 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.