ASN Lookup – Networks, Upstreams and Prefixes

AS399937

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS399937

NameUCMCLOUD

OrganisationCisco Webex LLC

Country –

RIRARIN

Allocated10.08.2021

Network Overview

IPv4 Prefixes13

IPv6 Prefixes0

Upstreams IPv45

BGP Peers IPv40

Upstreams (Transit Providers)

IPv4

AS1221 ASN-TELSTRA

AS13445 WEBEX

AS3356 LEVEL3

AS4637 ASN-TELSTRA-GLOBAL

AS7474 OPTUSCOM-AS01-AU

IPv4 Prefixes (13 total)

8.38.216.0/24

158.222.49.0/24

139.177.91.0/24

139.177.89.0/24

139.177.90.0/24

158.222.48.0/24

139.177.86.0/24

139.177.84.0/24

139.177.92.0/24

139.177.88.0/24

139.177.85.0/24

139.177.93.0/24

139.177.87.0/24

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What is an ASN?

An Autonomous System Number (ASN) is a unique number assigned to a network on the internet. Upstreams are the transit providers through which the AS reaches the internet. Peers are networks with which direct traffic exchange takes place. Prefixes are the IP address ranges that the AS announces to the internet. Data via RIPE NCC RDAP and RIPEstat API.