NumberResearchThousands-blocks in 714-203
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 714-203 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 714 blocks
Most active assignees, all time — NPA 714
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 714-203-0XXX | 0000–0999 | Reserved | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PLACENTIA | CA |
| 2008-09-11 | 714-203-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLACENTIA | CA |
| 2003-09-22 | 714-203-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | PLACENTIA | CA |
| 2011-01-10 | 714-203-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | PLACENTIA | CA |
| 2005-11-14 | 714-203-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PLACENTIA | CA |
| 2011-03-25 | 714-203-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | PLACENTIA | CA |
| 2005-11-18 | 714-203-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PLACENTIA | CA |
| 2009-09-02 | 714-203-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | PLACENTIA | CA |
| 2000-10-18 | 714-203-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLACENTIA | CA |
| 2009-09-02 | 714-203-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | PLACENTIA | 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.