AS19480 — CPL

AS19480 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

The AS handle CPL is held by Chicago Public Library.

What it's used for

• The address space carries library infrastructure, evidenced by reverse DNS entries such as st-64-107-3-64.chipublib.org and lorica5.chipublib.org.
• The AS announces 512 IPv4 addresses across 2 prefixes with 2 observed neighbours, indicating a small, self-contained internal network rather than a transit or large access provider.

Notable

• The RDAP registrants for both prefixes are listed as "Illinois Century Network; Hostmaster" with netnames ICN1 and ICN7, which differs from the AS holder name but aligns with the library's operational domain.
• The inventory consists of two /24 blocks, 64.107.3.0/24 and 66.99.5.0/24, representing a modest and finely subdivided corporate estate.

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

Announced prefixes

• 64.107.3.0/24
• 66.99.5.0/24

Upstream networks

• AS6079 RCN
• AS6325 Illinois Century Network

Adjacent networks

• AS6079 RCN
• AS6325 Illinois Century Network