NumberResearchThousands-blocks in 209-710
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 209-710 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 209 blocks
Most active assignees, all time — NPA 209
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-10-20 | 209-710-0XXX | 0000–0999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | LOS BANOS | CA |
| — | 209-710-1XXX | 1000–1999 | Reserved | IP HORIZON LLC | 515J | LOS BANOS | CA |
| — | 209-710-2XXX | 2000–2999 | Reserved | IP HORIZON LLC | 515J | LOS BANOS | CA |
| 2009-06-12 | 209-710-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | LOS BANOS | CA |
| 2013-09-09 | 209-710-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | LOS BANOS | CA |
| 2005-07-05 | 209-710-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LOS BANOS | CA |
| 2004-09-01 | 209-710-6XXX | 6000–6999 | Assigned | PACIFIC BELL | 9740 | LOS BANOS | CA |
| 2005-08-15 | 209-710-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LOS BANOS | CA |
| 2006-07-18 | 209-710-8XXX | 8000–8999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | LOS BANOS | CA |
| 2007-08-09 | 209-710-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LOS BANOS | 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.