AS7091 — VIANET-ASN

AS7091 announces 7 IPv4 prefixes covering 12,288 addresses and 0 IPv6 prefixes.

About this network

VIANET-ASN is the Silicon Valley network originally operated as via.net, now registered to Next Level Connect of Palo Alto, California, a subsidiary of NLX Communications. Router reverse names in the space still read pa.via.net, a fossil of the earlier operator.

What it's used for

• Fiber internet service in the San Francisco Bay Area and, more recently, Southern California. Next Level Connect markets symmetrical multi-gigabit fiber to office buildings, multi-dwelling units, HOAs and neighbourhoods.
• Carries the legacy 209.81.0.0/18 block along with 199.4.218.0/24.

Notable

• Reverse DNS in 209.81.0.0/18 is a mix of provider infrastructure and named customer hosts (organisations and hosted services rather than numbered subscriber pools), which reads as a business and colocation-era ISP rather than a mass-market consumer network.
• The ASN registration dates from 1996; the organisation record was replaced in 2024 when Next Level Connect took the resources over. The number was not reissued, it changed hands with the network.

Interesting

• via.net was one of the many independent Bay Area ISPs of the 1990s. The AS number, the /18, and the router naming all survived the operator that created them.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 199.4.218.0/24
• 209.81.0.0/21
• 209.81.8.0/22
• 209.81.12.0/24
• 209.81.14.0/23
• 209.81.16.0/20
• 209.81.48.0/20

Upstream networks

• AS397379 Next Level Connect

Adjacent networks

• AS397379 Next Level Connect

Internet exchanges

• Equinix Internet Exchange Palo Alto — Palo Alto, United States