Home ASN LookupAS109

AS109 CISCOSYSTEMS - CISCO SYSTEMS, INC.

🇺🇸

ARINassigned

Announced Prefixes (BGP)

143total

96 IPv447 IPv6

IPv4 Addresses

Allocated (RIR)883,712

Announced (BGP)1.6M

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)1×10²⁹

Prefix Limit (IPv4)

1,000

Prefix Limit (IPv6)

200

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

1987-05-06

Announced Prefixes

(BGP)143

Prefix	RPKI	IRR	Last Seen
12.5.186.0/23	No ROA	Other IRR	-
12.19.88.0/21	No ROA	Other IRR	-
12.159.148.0/22	Valid	ARINOther IRR	-
64.100.0.0/16	Valid	ARINOther IRR	-
64.101.0.0/18	Valid	ARIN	-
64.101.64.0/18	Valid	ARIN	-
64.101.96.0/19	Valid	ARIN	-
64.101.128.0/18	Valid	ARINOther IRR	-
64.101.192.0/19	Valid	ARINOther IRR	-
64.101.224.0/19	Valid	ARINOther IRR	-

1-10 of 143

1 / 15

Allocated Prefixes

(RIR)20

Prefix	Country	RIR	Status
64.104.0.0/16	🇺🇸 US	ARIN	allocated
66.187.208.0/20	🇺🇸 US	ARIN	allocated
72.163.0.0/16	🇺🇸 US	ARIN	allocated
103.60.32.0/22	🇨🇳 CN	APNIC	allocated
111.223.8.0/22	🇨🇳 CN	APNIC	allocated
128.107.0.0/16	🇺🇸 US	ARIN	allocated
144.254.0.0/16	🇺🇸 US	ARIN	allocated
161.44.0.0/16	🇺🇸 US	ARIN	allocated
171.68.0.0/14	🇺🇸 US	ARIN	allocated
173.36.0.0/14	🇺🇸 US	ARIN	allocated

1-10 of 20

1 / 2

All 143 announced prefixes of AS109 →

BGP Neighbours

(seen in AS paths)

Upstreams (19)

Networks AS109 hands its own prefixes to: transit providers, or peers at an exchange.

AS3356Level 3 Parent48
AS6939Hurricane Electric29
AS3491PCCWG APAC HK PCCW Global HK9
AS4637ASN TELSTRA GLOBAL Telstra Global8
AS4755TATACOMM TATA Communications Formerly VSNL Is Leading ISP7
AS9498BBIL AP BHARTI Airtel6
AS1221ASN TELSTRA Limited5
AS1680NV ASN CELLCOM4
AS4657STARHUB INTERNET StarHub4
AS4812CHINANET SH AP China Telecom Group4
AS2764AAPT Limited3
AS7473SINGTEL AP Singapore Telecommunications3
AS8551BEZEQ INTERNATIONAL Bezeq International3
AS1299TWELVE99 Arelion Sweden AB2
AS7018AT&T Enterprises2
AS11164Internet22
AS17621CNCGROUP SH China Unicom Shanghai Network2
AS701Verizon Business1
AS8220COLT Technology Services Group Limited1

Transfer History

Registry transfers of AS109 between organisations.

AS109M&A · 2023-09-12
Cisco Systems, Inc.
🇺🇸 US ARIN
→
CISCO SYSTEMS, INC.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2023-09-12	AS109	Cisco Systems, Inc. 🇺🇸 US ARIN	CISCO SYSTEMS, INC. 🇺🇸 US ARIN	M&A

ASPA

No ASPA

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS109 should publish an ASPA object
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/109

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/109" | jq