Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS40427

Announcement observedARIN

Cisco Systems Ironport Division · IRONPORT-SYSTEMS-CI365

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/3/2026, 09:08:19Snapshot expired

View network topology RDAP registration

ASN: AS40427
Registration country: United States
Name: Cisco Systems Ironport Division
Abbreviation: IRONPORT-SYSTEMS-CI365
Registration date: 2/16/2007, 20:15:56
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
194.165.198.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 00:00:00	10/3/2026, 00:00:00	✓	×	Historical record
194.165.199.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 00:00:00	10/3/2026, 00:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Cisco Systems Ironport Division
RIR: ARIN
Registration country: United States
Registration date: 2/16/2007, 20:15:56
Abuse contact: netops-ironport@cisco.com

Snapshot trend

10/3/2026, 09:08:192 v40 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn