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Autonomous System

AS33645

ODYSSEY RE HOLDINGS CORP

Announced IPs
768
CIDR prefixes
3
ASN
AS33645

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

CIDRIPsPTR DensityOrganizationCountryStateCity
47.19.109.0/24 256
98.0%
ODYSSEY RE HOLDINGS CORP US New York New York
161.38.251.0/24 256
1.6%
ODYSSEY RE HOLDINGS CORP US
208.215.188.0/24 256
73.4%
ODYSSEY RE HOLDINGS CORP US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS33645 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
47.19.109.0/24 4,469 2026-07-25 03:34:44
161.38.251.0/24 4,179 2026-07-25 03:41:26
208.215.188.0/24 4,159 2026-07-25 03:41:26

Frequently Asked Questions

What is AS33645?

AS33645 is an Autonomous System Number assigned to ODYSSEY RE HOLDINGS CORP. 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 AS33645 announce?

AS33645 announces 768 IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.

Who operates AS33645?

AS33645 is operated by ODYSSEY RE HOLDINGS CORP. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS33645 registered in?

AS33645 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: 2026-07-25 05:40:31 UTC
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