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Autonomous System

AS2912

Citigroup Inc.

Announced IPs
3,584
CIDR prefixes
8
ASN
AS2912

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS2912 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
192.193.72.0/24 12,506 2026-07-23 22:46:56
192.193.66.0/24 12,501 2026-07-23 22:46:56
192.193.71.0/24 9,609 2026-07-23 22:46:50
192.193.67.0/24 9,591 2026-07-23 22:46:50
192.193.64.0/24 9,437 2026-07-23 22:46:50
192.193.70.0/24 9,429 2026-07-23 22:46:50
192.193.162.0/24 9,422 2026-07-23 22:46:50
192.193.191.0/24 9,405 2026-07-23 22:46:50
192.193.157.0/24 9,400 2026-07-23 22:46:50
192.193.161.0/24 9,399 2026-07-23 22:46:50
192.193.163.0/24 9,390 2026-07-23 22:46:50
192.193.156.0/24 9,384 2026-07-23 22:46:50
192.193.160.0/24 9,376 2026-07-23 22:46:50
192.193.149.0/24 9,372 2026-07-23 22:46:50

Frequently Asked Questions

What is AS2912?

AS2912 is an Autonomous System Number assigned to Citigroup Inc.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS2912 announce?

AS2912 announces 3.6K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in United States.

Who operates AS2912?

AS2912 is operated by Citigroup Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS2912 registered in?

AS2912 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 23:40:31 UTC
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