Autonomous system profile

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

AS109

Announcement observedARIN

CISCO SYSTEMS, INC. · CISCOSYSTEMS

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

Last active10/18/2026, 02:47:16Snapshot expired

View network topology RDAP registration

ASN: AS109
Registration country: United States
Name: CISCO SYSTEMS, INC.
Abbreviation: CISCOSYSTEMS
Registration date: 5/6/1987, 04:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
103.60.32.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
111.223.8.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
12.159.148.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
12.19.88.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
12.5.186.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.0.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.10.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.12.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.14.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.18.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.2.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.20.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.22.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.24.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.34.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/6/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.36.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/30/2026, 08:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.38.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.4.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.40.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.54.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.6.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
128.107.8.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
144.254.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
161.44.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
171.68.0.0/14BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.36.0.0/14BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.36.0.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.37.0.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.37.128.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.37.145.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.37.16.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.37.160.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.37.192.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.37.64.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.38.0.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.38.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.0.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.128.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.144.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.152.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.160.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.192.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.200.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.64.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
173.39.96.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
192.118.76.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
192.118.78.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
192.133.192.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid
192.133.224.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/14/2026, 16:00:00	10/15/2026, 00:00:00	✓	×	Currently valid

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

Registration and sources

Organization: CISCO SYSTEMS, INC.
RIR: ARIN
Registration country: United States
Registration date: 5/6/1987, 04:00:00
Abuse contact: csirt-notify@cisco.com

Snapshot trend

10/18/2026, 02:47:1696 v447 v618 Upstream · 0 Uncertain

10/18/2026, 02:44:2996 v447 v618 Upstream · 0 Uncertain

10/10/2026, 19:36:5796 v447 v618 Upstream · 0 Uncertain

10/1/2026, 00:32:5595 v445 v618 Upstream · 0 Uncertain

9/28/2026, 20:25:3294 v444 v618 Upstream · 0 Uncertain

9/28/2026, 20:24:570 v40 v60 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