ASN Lookup – Networks, Upstreams and Prefixes

AS55900

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS55900

NameGLBB-JP

Country

RIRAPNIC

Network Overview

IPv4 Prefixes27

IPv6 Prefixes1

Upstreams IPv410

BGP Peers IPv414

Upstreams (Transit Providers)

IPv4

AS1299 TWELVE99

AS135607 INFINIVAN-AS-AP

AS137409 GSLNETWORKS-AS-AP

AS24482 SGGS-AS-AP

AS2497 IIJ

AS2518 BIGLOBE

AS2914 NTT-DATA-2914

AS3356 LEVEL3

AS35280 F5

AS6939 HURRICANE

IPv4 Prefixes (27 total, showing 20)

27.0.16.0/20

103.13.248.0/22

137.220.16.0/20

218.223.128.0/22

202.12.246.0/24

202.171.224.0/21

202.12.244.0/22

218.223.132.0/22

123.100.136.0/22

180.131.240.0/20

218.223.128.0/21

103.250.92.0/24

43.248.160.0/22

180.131.208.0/20

103.7.88.0/22

109.236.0.0/20

123.100.156.0/22

103.250.93.0/24

180.131.224.0/20

103.100.190.0/23

IPv6 Prefixes (1 total)

2404:2d00::/32

BGP Peers IPv4 (14 total)

AS131951

AS135607

AS146986

AS24277

AS2914

AS45679

AS55899

AS63774

AS63800

AS18106

AS1828

AS2500

AS49544

AS59105

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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.