AS19557 — CHANGEIP-01

AS19557 announces 1 IPv4 prefixes covering 2,048 addresses and 1 IPv6 prefixes.

About this network

The AS handle CHANGEIP-01 is held by ChangeIP.

What it's used for

• The address space carries ChangeIP infrastructure, evidenced by the netname SDBB-LEGACY-NETBLOCK-01 and reverse DNS entries pointing to changeip.com.
• The AS announces 2048 IPv4 addresses and 3 IPv6 prefixes with only 1 observed neighbour, indicating a small, self-contained network rather than a transit provider.

Notable

• The registrant CHANGEIP COM and the netname SDBB-LEGACY-NETBLOCK-01 align with the announcer, confirming the space is directly managed by the operator.
• The inventory consists of a single IPv4 prefix 204.16.168.0/21 and three IPv6 prefixes, reflecting a compact, legacy-focused address estate.

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

Announced prefixes

• 204.16.168.0/21
• 2620:100:5000::/45

Upstream networks

• AS23352 DEFT.COM

Adjacent networks

• AS23352 DEFT.COM