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Autonomous System

AS25883

Citigroup Inc.

Announced IPs
3,584
CIDR prefixes
10
ASN
AS25883

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 AS25883 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
192.193.40.0/24 18,706 2026-09-11 10:11:01
192.193.41.0/24 18,691 2026-09-11 10:11:01
192.193.105.0/24 18,665 2026-09-11 10:11:01
192.193.185.0/24 18,659 2026-09-11 10:11:01
192.193.102.0/24 18,316 2026-09-11 10:11:12
192.193.104.0/24 18,307 2026-09-11 10:11:12
192.193.8.0/24 18,245 2026-09-11 10:11:01
192.193.103.0/24 18,239 2026-09-11 10:11:12
192.193.178.0/24 18,173 2026-09-11 10:11:01
192.193.179.0/24 18,160 2026-09-11 10:11:01
199.67.180.0/24 17,864 2026-09-11 10:11:01
192.193.39.0/24 17,630 2026-09-11 10:11:01
192.193.222.0/24 16,981 2026-09-11 10:11:01
192.193.171.0/24 16,740 2026-09-11 10:11:00

Frequently Asked Questions

What is AS25883?

AS25883 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 AS25883 announce?

AS25883 announces 3.6K IPv4 addresses distributed across 10 routed CIDR prefixes. The network is registered in United States.

Who operates AS25883?

AS25883 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 AS25883 registered in?

AS25883 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: 2026-09-11 10:26:07 UTC
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