NumberResearchThousands-blocks in 814-521
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 814-521 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 814 blocks
Most active assignees, all time — NPA 814
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-09-14 | 814-521-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SOMERSET | PA |
| 2006-09-20 | 814-521-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SOMERSET | PA |
| 2009-05-11 | 814-521-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SOMERSET | PA |
| 2007-08-13 | 814-521-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SOMERSET | PA |
| 2008-05-06 | 814-521-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SOMERSET | PA |
| 2010-02-03 | 814-521-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SOMERSET | PA |
| 2013-07-05 | 814-521-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SOMERSET | PA |
| 2011-01-10 | 814-521-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SOMERSET | PA |
| 2013-04-05 | 814-521-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SOMERSET | PA |
| — | 814-521-9XXX | 9000–9999 | Reserved | METROPCS, INC. | 5562 | SOMERSET | 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.