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ASN Lookup Tool
AS109 CISCOSYSTEMS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS109
Organisation
CISCO SYSTEMS, INC.
Name
CISCOSYSTEMS
Total IPv4 Addresses
1,141,504
Total IPv4 Prefixes
125
Total IPv6 Prefixes
86
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#326 out of 77,675
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1987-05-06
Registration Last Change
2023-09-12
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS7018
US flagAT&T Services, Inc.
AS7922
US flagComcast Cable Communications, LLC
AS701
US flagVerizon Business
AS3356
US flagLevel 3 Parent, LLC
AS4812
CN flagChina Telecom (Group) Shanghai Telecom Company S..
Showing 5 of 19
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix12.5.186.0/23
Range From12.5.186.0
Range To12.5.187.255
Prefix12.19.88.0/21
Range From12.19.88.0
Range To12.19.95.255
Prefix12.159.148.0/22
Range From12.159.148.0
Range To12.159.151.255
Prefix64.100.0.0/16
Range From64.100.0.0
Range To64.100.255.255
Prefix64.101.0.0/18
Range From64.101.0.0
Range To64.101.63.255
Showing 5 of 125
IPv6 Active Prefixes
Prefix2001:420::/41
Range From2001:420::
Range To2001:420:7f:ffff:ffff:ffff:ffff:ffff
Prefix2001:420:80::/45
Range From2001:420:80::
Range To2001:420:87:ffff:ffff:ffff:ffff:ffff
Prefix2001:420:88::/48
Range From2001:420:88::
Range To2001:420:88:ffff:ffff:ffff:ffff:ffff
Prefix2001:420:89::/48
Range From2001:420:89::
Range To2001:420:89:ffff:ffff:ffff:ffff:ffff
Prefix2001:420:8a::/48
Range From2001:420:8a::
Range To2001:420:8a:ffff:ffff:ffff:ffff:ffff
Showing 5 of 86
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.