NumberResearchThousands-blocks in 669-275
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/21/2026
The ten 1,000-number thousand-blocks inside prefix 669-275 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 669 blocks
Most active assignees, all time — NPA 669
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-05-16 | 669-275-0XXX | 0000–0999 | Assigned | HD CARRIER LLC | 321J | SNJS SOUTH | CA |
| 2016-05-16 | 669-275-1XXX | 1000–1999 | Assigned | HD CARRIER LLC | 321J | SNJS SOUTH | CA |
| 2015-11-17 | 669-275-2XXX | 2000–2999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SNJS SOUTH | CA |
| 2015-12-01 | 669-275-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS SOUTH | CA |
| 2016-01-05 | 669-275-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNJS SOUTH | CA |
| 2015-12-08 | 669-275-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS SOUTH | CA |
| 2016-05-16 | 669-275-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | SNJS SOUTH | CA |
| 2016-04-20 | 669-275-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SNJS SOUTH | CA |
| 2016-05-16 | 669-275-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | SNJS SOUTH | CA |
| 2016-05-10 | 669-275-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SNJS SOUTH | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.