AS13253 — ISP-ASN4

AS13253 announces 4 IPv4 prefixes covering 3,584 addresses and 1 IPv6 prefixes.

About this network

The handle ISP-ASN4 belongs to a bank, and the n4 is a serial number.

What it's used for

• A network of an Italian banking group. 3,584 addresses across four IPv4 prefixes, one IPv6 prefix 2a00:b740:5::/48, and two observed BGP neighbours.

Notable

• The registry holder is recorded as ISP-ASn4 with a lowercase n; the AS handle is ISP-ASN4.
• Netnames are ISP-NET-n3, ISP-NET-n4, ISP-NET-n5 and IT-INTESASANPAOLO.
• Every block lists the role object Admin TLC as a registrant; only two also name the bank.
• Two observed neighbours against 3,584 addresses.

Interesting

• ISP reads as the standard abbreviation for an access provider, and here it is the bank's own initials. This is the second network in this range where those three letters mean a financial institution rather than a service provider, which makes the abbreviation useless as a filter.
• The n3, n4 and n5 series says this AS is one member of a numbered set, and the same number appears in both the AS handle and the netnames. The bank runs several autonomous systems and labelled them the way an accountant would.
• The lowercase n in the holder field and the uppercase N in the handle are the same identifier entered twice by different hands. Nothing resolves the difference because nothing has to.
• Two neighbours is the profile of a network that buys connectivity and sells none.

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

Announced prefixes

• 62.128.64.0/24
• 62.221.160.0/21
• 193.227.212.0/22
• 194.29.204.0/24
• 2a00:b740:5::/48

Upstream networks

• AS12874 Fastweb SpA
• AS3269 Telecom Italia S.p.A.

Adjacent networks

• AS12874 Fastweb SpA
• AS3269 Telecom Italia S.p.A.