109 CISCOSYSTEMS - CISCO SYSTEMS, INC., US
Adjacency: 14 Upstream: 14 Downstream: 0
Upstream Adjacent AS list
AS3491 PCCWG-APAC-HK PCCW Global HK Ltd., HK
AS1299 TWELVE99 Arelion, fka Telia Carrier, SE
AS3356 LEVEL3 - Level 3 Parent, LLC, US
AS4637 ASN-TELSTRA-GLOBAL Telstra Global, HK
AS17621 CNCGROUP-SH China Unicom Shanghai network, CN
AS701 UUNET - Verizon Business, US
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US
AS7473 SINGTEL-AS-AP Singapore Telecommunications Ltd, SG
AS9498 BBIL-AP BHARTI Airtel Ltd., IN
AS4812 CHINANET-SH-AP China Telecom Group, CN
AS1221 ASN-TELSTRA Telstra Limited, AU
AS4657 STARHUB-INTERNET StarHub Ltd, SG
AS6939 HURRICANE - Hurricane Electric LLC, US
AS8551 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbone, IL
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 319 AS109 ORIGIN Originate: 1595904 /11.39 Transit: 0 /0.00 CISCOSYSTEMS - CISCO SYSTEMS, INC., US
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 2402 AS109 CISCOSYSTEMS - CISCO SYSTEMS, INC., US 93 24 2 71 22 23.66% Prefix AS Path Aggregation Suggestion 12.5.186.0/23 4777 2497 701 109 12.19.88.0/21 4608 6939 109 12.159.148.0/22 4777 2497 3356 109 64.100.0.0/14 4777 2497 3356 109 + Announce - aggregate of 64.100.0.0/15 (4777 2497 3356 109) and 64.102.0.0/15 (4777 2497 3356 109) 64.100.0.0/16 4777 2497 3356 109 - Withdrawn - aggregated with 64.101.0.0/16 (4777 2497 3356 109) 64.101.0.0/18 4777 2497 3356 109 - Withdrawn - aggregated with 64.101.64.0/18 (4777 2497 3356 109) 64.101.64.0/18 4777 2497 3356 109 - Withdrawn - aggregated with 64.101.0.0/18 (4777 2497 3356 109) 64.101.96.0/19 4777 2497 3356 109 - Withdrawn - matching aggregate 64.101.64.0/18 4777 2497 3356 109 64.101.128.0/18 4777 2497 3356 109 - Withdrawn - aggregated with 64.101.192.0/18 (4777 2497 3356 109) 64.101.192.0/19 4777 2497 3356 109 - Withdrawn - aggregated with 64.101.224.0/19 (4777 2497 3356 109) 64.101.224.0/19 4777 2497 3356 109 - Withdrawn - aggregated with 64.101.192.0/19 (4777 2497 3356 109) 64.102.0.0/16 4777 2497 3356 109 - Withdrawn - aggregated with 64.103.0.0/16 (4777 2497 3356 109) 64.102.249.0/24 4777 2497 3356 109 - Withdrawn - matching aggregate 64.102.0.0/16 4777 2497 3356 109 64.103.0.0/16 4777 2497 3356 109 - Withdrawn - aggregated with 64.102.0.0/16 (4777 2497 3356 109) 64.103.0.0/17 4777 2497 1299 109 64.103.40.0/21 4777 6939 109 64.103.48.0/21 4777 6939 109 64.103.64.0/19 4777 6939 109 64.103.96.0/20 4777 6939 109 64.103.128.0/17 4608 24115 9498 109 64.104.0.0/16 4777 2497 3356 109 64.104.0.0/18 4777 2497 4637 109 64.104.64.0/19 4777 2497 7473 109 64.104.96.0/19 4777 2497 4637 109 64.104.124.0/24 4777 2497 4637 109 - Withdrawn - matching aggregate 64.104.96.0/19 4777 2497 4637 109 64.104.128.0/19 4608 24115 9498 109 64.104.160.0/19 4777 2497 4637 109 64.104.192.0/18 4608 1221 109 64.104.204.0/23 4608 1221 109 - Withdrawn - matching aggregate 64.104.192.0/18 4608 1221 109 64.104.206.0/23 4608 1221 109 - Withdrawn - matching aggregate 64.104.192.0/18 4608 1221 109 66.187.208.0/20 4608 6939 109 72.163.0.0/16 4777 2497 3356 109 72.163.0.0/18 4777 2497 701 109 72.163.4.0/24 4777 2497 701 109 - Withdrawn - matching aggregate 72.163.0.0/18 4777 2497 701 109 72.163.7.0/24 4777 2497 701 109 - Withdrawn - matching aggregate 72.163.0.0/18 4777 2497 701 109 72.163.64.0/20 4777 2497 3356 109 - Withdrawn - matching aggregate 72.163.0.0/16 4777 2497 3356 109 72.163.80.0/20 4608 6939 109 72.163.96.0/19 4777 2497 3356 109 - Withdrawn - matching aggregate 72.163.0.0/16 4777 2497 3356 109 72.163.128.0/18 4608 24115 9498 109 72.163.192.0/19 4608 24115 9498 109 72.163.224.0/19 4777 2497 4637 109 72.163.240.0/23 4777 2497 4134 4812 109 72.163.248.0/22 4777 2497 4134 4812 109 103.60.32.0/22 4777 2497 4134 4812 109 111.223.8.0/22 4777 2516 4134 4812 109 128.107.0.0/16 4777 2497 3356 109 128.107.0.0/23 4777 2497 3356 109 - Withdrawn - matching aggregate 128.107.0.0/16 4777 2497 3356 109 128.107.2.0/23 4777 2497 701 109 128.107.4.0/23 4608 6939 109 128.107.6.0/23 4777 2497 7018 109 128.107.8.0/23 4777 6939 109 128.107.10.0/23 4777 2497 1299 109 128.107.12.0/23 4777 6939 8551 109 128.107.14.0/23 4777 2497 9498 109 128.107.18.0/23 4777 2516 4657 109 128.107.20.0/23 4777 2497 4637 109 128.107.22.0/23 4608 1221 109 128.107.24.0/23 4777 2497 4837 17621 109 128.107.38.0/23 4777 2497 7018 109 128.107.40.0/23 4777 6939 109 128.107.54.0/23 4608 1221 109 144.254.0.0/16 4777 2497 1299 109 161.44.0.0/16 4777 2497 3356 109 171.68.0.0/14 4777 2497 3356 109 173.36.0.0/14 4777 2497 3356 109 173.36.0.0/17 4608 6939 109 173.37.0.0/20 4777 2497 701 109 173.37.16.0/20 4608 6939 109 173.37.64.0/18 4777 2497 701 109 173.37.128.0/19 4608 6939 109 173.37.145.0/24 4608 6939 109 - Withdrawn - matching aggregate 173.37.128.0/19 4608 6939 109 173.37.160.0/19 4777 2497 701 109 173.37.192.0/18 4777 2497 701 109 173.38.0.0/17 4777 2497 3356 109 - Withdrawn - matching aggregate 173.36.0.0/14 4777 2497 3356 109 173.38.128.0/17 4777 2497 1299 109 173.39.0.0/18 4608 24115 9498 109 173.39.64.0/19 4608 24115 9498 109 173.39.96.0/19 4777 2497 7473 109 173.39.128.0/18 4777 2497 4637 109 + Announce - aggregate of 173.39.128.0/19 (4777 2497 4637 109) and 173.39.160.0/19 (4777 2497 4637 109) 173.39.128.0/19 4777 2497 4637 109 - Withdrawn - aggregated with 173.39.160.0/19 (4777 2497 4637 109) 173.39.144.0/21 4777 2497 4637 109 - Withdrawn - matching aggregate 173.39.128.0/19 4777 2497 4637 109 173.39.152.0/21 4777 2497 4637 109 - Withdrawn - matching aggregate 173.39.128.0/19 4777 2497 4637 109 173.39.160.0/19 4777 2497 4637 109 - Withdrawn - aggregated with 173.39.128.0/19 (4777 2497 4637 109) 173.39.192.0/20 4777 2497 4637 109 173.39.200.0/23 4777 2497 4134 4812 109 192.118.76.0/22 4777 6939 8551 109 192.133.192.0/19 4777 2497 3356 109 192.133.224.0/20 4777 2497 3356 109 192.133.240.0/22 4777 2497 3356 109 192.135.250.0/24 4608 6939 109 198.133.219.0/24 4777 2497 3356 109 198.135.0.0/21 4777 2497 3356 109 204.69.198.0/23 4777 2497 3356 109 204.69.200.0/24 4777 2497 3356 109 216.128.32.0/19 4777 2497 1299 109
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS109 74 More Specifics 93 Total Advertisements CISCOSYSTEMS - CISCO SYSTEMS, INC., US
12.5.186.0/23 12.0.0.0/8
12.19.88.0/21 12.0.0.0/8
12.159.148.0/22 12.0.0.0/8
64.100.0.0/16 64.100.0.0/14
64.101.0.0/18 64.100.0.0/14
64.101.64.0/18 64.100.0.0/14
64.101.96.0/19 64.100.0.0/14
64.101.128.0/18 64.100.0.0/14
64.101.192.0/19 64.100.0.0/14
64.101.224.0/19 64.100.0.0/14
64.102.0.0/16 64.100.0.0/14
64.102.249.0/24 64.100.0.0/14
64.103.0.0/16 64.100.0.0/14
64.103.0.0/17 64.100.0.0/14
64.103.40.0/21 64.100.0.0/14
64.103.48.0/21 64.100.0.0/14
64.103.64.0/19 64.100.0.0/14
64.103.96.0/20 64.100.0.0/14
64.103.128.0/17 64.100.0.0/14
64.104.0.0/18 64.104.0.0/16
64.104.64.0/19 64.104.0.0/16
64.104.96.0/19 64.104.0.0/16
64.104.124.0/24 64.104.0.0/16
64.104.128.0/19 64.104.0.0/16
64.104.160.0/19 64.104.0.0/16
64.104.192.0/18 64.104.0.0/16
64.104.204.0/23 64.104.0.0/16
64.104.206.0/23 64.104.0.0/16
72.163.0.0/18 72.163.0.0/16
72.163.4.0/24 72.163.0.0/16
72.163.7.0/24 72.163.0.0/16
72.163.64.0/20 72.163.0.0/16
72.163.80.0/20 72.163.0.0/16
72.163.96.0/19 72.163.0.0/16
72.163.128.0/18 72.163.0.0/16
72.163.192.0/19 72.163.0.0/16
72.163.224.0/19 72.163.0.0/16
72.163.240.0/23 72.163.0.0/16
72.163.248.0/22 72.163.0.0/16
128.107.0.0/23 128.107.0.0/16
128.107.2.0/23 128.107.0.0/16
128.107.4.0/23 128.107.0.0/16
128.107.6.0/23 128.107.0.0/16
128.107.8.0/23 128.107.0.0/16
128.107.10.0/23 128.107.0.0/16
128.107.12.0/23 128.107.0.0/16
128.107.14.0/23 128.107.0.0/16
128.107.18.0/23 128.107.0.0/16
128.107.20.0/23 128.107.0.0/16
128.107.22.0/23 128.107.0.0/16
128.107.24.0/23 128.107.0.0/16
128.107.38.0/23 128.107.0.0/16
128.107.40.0/23 128.107.0.0/16
128.107.54.0/23 128.107.0.0/16
173.36.0.0/17 173.36.0.0/14
173.37.0.0/20 173.36.0.0/14
173.37.16.0/20 173.36.0.0/14
173.37.64.0/18 173.36.0.0/14
173.37.128.0/19 173.36.0.0/14
173.37.145.0/24 173.36.0.0/14
173.37.160.0/19 173.36.0.0/14
173.37.192.0/18 173.36.0.0/14
173.38.0.0/17 173.36.0.0/14
173.38.128.0/17 173.36.0.0/14
173.39.0.0/18 173.36.0.0/14
173.39.64.0/19 173.36.0.0/14
173.39.96.0/19 173.36.0.0/14
173.39.128.0/19 173.36.0.0/14
173.39.144.0/21 173.36.0.0/14
173.39.152.0/21 173.36.0.0/14
173.39.160.0/19 173.36.0.0/14
173.39.192.0/20 173.36.0.0/14
173.39.200.0/23 173.36.0.0/14
204.69.200.0/24 204.69.200.0/23
whois: 402332
IANA has recorded AS109 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS109\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 109
ASName: CISCOSYSTEMS
ASHandle: AS109
RegDate: 1987-05-06
Updated: 2023-09-12
Ref: https://rdap.arin.net/registry/autnum/109
OrgName: CISCO SYSTEMS, INC.
OrgId: CS-2831
Address: 251 LITTLE FALLS DRIVE
City: WILMINGTON
StateProv: DE
PostalCode: 19808
Country: US
RegDate: 2023-06-07
Updated: 2024-02-16
Ref: https://rdap.arin.net/registry/entity/CS-2831
OrgTechHandle: GATC-ARIN
OrgTechName: GIS ARIN Technical Contact
OrgTechPhone: +1-408-526-8888
OrgTechEmail: cidr-block-admins@cisco.com
OrgTechRef: https://rdap.arin.net/registry/entity/GATC-ARIN
OrgNOCHandle: GATC-ARIN
OrgNOCName: GIS ARIN Technical Contact
OrgNOCPhone: +1-408-526-8888
OrgNOCEmail: cidr-block-admins@cisco.com
OrgNOCRef: https://rdap.arin.net/registry/entity/GATC-ARIN
OrgAbuseHandle: CISCO6-ARIN
OrgAbuseName: Cisco CSIRT
OrgAbusePhone: +1-408-527-3227
OrgAbuseEmail: csirt-notify@cisco.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/CISCO6-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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