asn.dev

Autonomous system

AS53307 YISG

Unclassified ARIN

IPv4 addresses 768 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Sedgwick Claims Management Services

United States of America · AI-generated

business corporate claims internal

YISG is the autonomous system for Sedgwick Claims Management Services, Inc.

What it's used for

  • The address space is registered under the netname YISG for Sedgwick Claims Management Services, Inc., indicating a dedicated corporate network.
  • The AS announces 768 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access provider.
  • Traffic from this AS consists of internal corporate communications, office workers, and business applications for a global claims management and risk consulting firm.

Notable

  • Registrants for both announced prefixes match the AS holder, Sedgwick Claims Management Services, Inc.
  • KKR acquired Sedgwick Claims Management Services Inc for $2.4 billion in January 2014.
  • The inventory consists of two contiguous IPv4 blocks: 74.116.228.0/23 and 74.116.230.0/24.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC156
AS7381BroadbandONE, LLC27

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS53307
Registry name
YISG
Registrant
Sedgwick Claims Management Services, Inc.
Abuse contact
ArinMasterMailbox@sedgwickcms.com
Registered
2009-12-07
Last changed
2025-12-04
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS53307
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
6 naming AS53307

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 448 networks and 1,849 prefixes, as published 2026-10-30. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check