AS33463 — CITIGROUP-GLOBAL-ANYCAST-DNS

AS33463 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

The AS handle CITIGROUP-GLOBAL-ANYCAST-DNS is held by Citigroup Inc.

What it's used for

• The address space carries infrastructure for Citigroup's global anycast DNS services, as indicated by the AS name and netnames CITICORP-C and CITI-199-67-128-247.
• The AS announces 512 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio consistent with a specialized internal corporate estate rather than a transit or access network.

Notable

• Registrants align with the announcer, with Citibank N.A. and Citigroup Inc. listed for the respective prefixes.
• Citigroup Inc. was formed in 1998 by the merger of Citicorp and Travelers Group, establishing the current corporate identity behind this infrastructure.
• The inventory consists of two /24 blocks, 192.193.214.0/24 and 199.67.172.0/24, with no IPv6 prefixes announced.

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

Announced prefixes

• 192.193.214.0/24
• 199.67.172.0/24

Upstream networks

• AS25883 Citigroup Inc.
• AS3081 Citigroup Inc.

Adjacent networks

• AS25883 Citigroup Inc.
• AS3081 Citigroup Inc.

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 50% of announcements registered; 2 route objects.
• Listed in as-sets: AS-BBX-PEERS, AS-GIGAINFRA, AS-IIJ, AS-IIJ6, AS-INFOSPHERE, AS-INFOSPHERE-V6, AS-KDD, AS-KDDI6, AS-OCN, AS-OCN, AS-PNAPNYM, AS-XO-B, AS2497:AS-IIJ, AS2497:AS-IIJ6.