AS10372 WELLSFARGO-10372-10376

WELLSFARGO-10372-10376 is Wells Fargo Bank, N.A., one of the largest US

banks. The handle names a range of ASNs — this AS and

[AS10376](https://asn.ipinfo.app/AS10376) are registered together and both carry

the bank's own network.

What it's used for

• Corporate and retail banking infrastructure: branch and office connectivity, data centres, internal applications, and the internet-facing edge of a bank with thousands of physical locations.
• The address space is a mixture of legacy 151.151.96.0/20 and 159.37.0.0 blocks with newer 162.28.0.0 and 162.60.0.0 ranges — a long-lived enterprise that has accumulated allocations over decades rather than acquired them recently.

Notable

• Enterprise, and the shape is textbook. RIS sees 73 IPv4 prefixes / 24,576 addresses announced with only 6 observed BGP neighbours. The ratio is the tell: 73 prefixes is a lot of announcements, but they carve up a modest 24k of address space reached through six upstreams. A carrier with a customer cone would peer with hundreds of ASes; this network peers with the handful of transit providers a bank contracts with, and originates only its own space.
• Heavy deaggregation into /22s and /23s is how a geographically dispersed enterprise steers traffic between multiple data centres and egress points.

Interesting

• Financial institutions of this size deliberately split their public networking across several ASNs, which is why a single handle spans 10372 through 10376: it isolates failure domains and lets different business units or regions be routed independently.