An Autonomous System Number (ASN) is a unique number assigned to a network in global internet routing. Every provider that participates directly on the internet has its own ASN (e.g. AS15169 for Google).

What are upstreams, peers and prefixes?

Upstreams are transit providers through which an AS reaches the internet. Peers are networks with direct traffic exchange. Prefixes are the IP address ranges the AS announces via BGP.

Where does the ASN data come from?

The data comes from the official RDAP services of the RIRs (RIPE, ARIN, etc.) and from RIPEstat (prefixes and neighbour ASNs).

ASN Lookup – Networks, Upstreams and Prefixes

AS9824

ASN

APNIC

RIR

231

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS9824

NameJTCL-JP-AS

OrganisationJCOM Co., Ltd.

Country

RIRAPNIC

Allocated04.09.2008

Abuse contactabuse@home.ne.jp

Network Overview

IPv4 Prefixes231

IPv6 Prefixes62

Upstreams (Transit)8

Downstreams (Customers)21

BGP Peers1

AS Path (BGP neighbours)

Upstreams (Transit)

AS1299Arelion (fka. Telia Carrier)AS2497Internet Initiative Japan Inc.AS2516KDDI Corporation AS2518BIGLOBE Inc.AS60068Datacamp Limited (CDN77 / DataPacket)AS6939Hurricane Electric LLC+2

AS9824JTCL-JP-AS

Downstreams (Customers)

AS17534NSK Co.,Ltd.AS17961mitene internet co., ltd.AS18134JCOM Co., Ltd.AS18136JCOM Co., Ltd.AS18283Chupicom Inc.AS23635CRCCMedia Co.,ltd+15

Upstreams (Transit) (8)

AS1299Arelion (fka. Telia Carrier)

AS2497Internet Initiative Japan Inc.

AS2516KDDI Corporation

AS2518BIGLOBE Inc.

AS60068Datacamp Limited (CDN77 / DataPacket)

AS6939Hurricane Electric LLC

AS8220COLT

AS9002RETN Limited

Downstreams (Customers) (21)

AS17534NSK Co.,Ltd.

AS17961mitene internet co., ltd.

AS18134JCOM Co., Ltd.

AS18136JCOM Co., Ltd.

AS18283Chupicom Inc.

AS23635CRCCMedia Co.,ltd

AS23788JCOM Co., Ltd.

AS23790JCOM Co., Ltd.

AS23808TOSHIMA CABLE NETWORK CO.,LTD

AS24255Koshinomiyako Network, Inc.

AS24276JCOM Co., Ltd.

AS24290Heart Network Co.,LTD

IPv4 Prefixes (231)

116.223.0.0/16

125.13.128.0/18

61.21.0.0/17

61.23.0.0/17

60.59.0.0/16

203.165.128.0/17

59.168.128.0/17

116.221.0.0/16

119.173.0.0/17

59.168.0.0/16

42.146.0.0/16

61.26.128.0/17

124.141.128.0/17

125.9.0.0/18

27.138.0.0/16

125.14.0.0/16

60.59.0.0/17

116.223.128.0/17

125.9.64.0/18

119.174.128.0/17

61.22.0.0/16

61.23.0.0/16

125.8.0.0/18

125.13.0.0/16

119.170.64.0/18

27.137.0.0/16

124.145.128.0/17

59.170.0.0/17

125.13.128.0/17

42.148.0.0/16

119.170.0.0/16

61.27.128.0/17

119.174.0.0/16

42.145.0.0/16

125.9.0.0/17

60.61.0.0/16

125.9.128.0/18

59.171.0.0/16

125.8.128.0/17

61.27.0.0/17

125.13.64.0/18

119.172.0.0/18

110.133.128.0/17

59.169.64.0/18

125.12.0.0/17

119.171.128.0/17

125.12.0.0/16

110.134.0.0/16

27.136.0.0/17

220.152.0.0/18

60.62.128.0/17

119.175.0.0/18

119.174.128.0/18

116.222.192.0/18

220.152.64.0/19

116.65.128.0/17

59.166.0.0/17

116.64.0.0/17

42.150.0.0/16

125.15.0.0/16

119.175.64.0/18

60.58.128.0/17

110.133.0.0/17

119.175.0.0/17

203.165.0.0/17

110.135.128.0/18

27.139.0.0/16

119.169.0.0/18

119.170.128.0/17

119.170.0.0/17

59.169.128.0/17

61.24.128.0/17

124.144.128.0/17

59.170.0.0/18

42.149.0.0/16

125.10.0.0/17

124.142.0.0/16

125.8.0.0/17

60.62.0.0/16

59.171.0.0/17

116.65.0.0/17

61.24.0.0/16

61.22.128.0/17

124.145.192.0/18

27.136.128.0/17

119.171.0.0/16

61.27.192.0/18

116.221.0.0/17

61.24.0.0/17

116.221.128.0/17

42.147.0.0/16

116.214.16.0/21

60.60.0.0/16

59.169.0.0/16

119.172.0.0/16

125.9.192.0/18

116.222.0.0/17

42.150.192.0/18

116.222.0.0/18

59.169.0.0/18

116.64.128.0/17

60.58.0.0/17

119.175.0.0/16

27.143.0.0/16

116.64.0.0/16

125.13.0.0/17

60.62.0.0/17

61.22.0.0/18

61.21.0.0/16

119.172.128.0/17

60.59.128.0/17

119.168.0.0/16

59.170.192.0/18

124.144.0.0/17

59.170.64.0/18

27.142.128.0/17

203.165.0.0/16

61.25.128.0/17

27.141.0.0/16

124.141.0.0/17

59.170.0.0/16

110.132.0.0/16

125.11.192.0/18

59.166.128.0/17

61.22.64.0/18

59.170.128.0/17

119.170.128.0/18

124.145.0.0/16

125.11.128.0/18

116.65.0.0/16

27.140.0.0/16

116.222.128.0/18

210.20.0.0/16

125.14.128.0/17

119.169.64.0/18

125.10.0.0/16

124.143.128.0/17

124.144.0.0/16

110.128.0.0/16

60.61.128.0/17

27.142.0.0/17

110.134.64.0/18

59.166.0.0/16

42.144.0.0/16

124.145.64.0/18

60.60.128.0/17

110.135.0.0/16

125.11.128.0/17

110.134.0.0/18

119.169.0.0/16

116.222.128.0/17

60.61.0.0/17

61.22.0.0/17

125.11.64.0/18

59.168.0.0/17

125.9.0.0/16

60.60.0.0/17

124.145.0.0/18

116.222.0.0/16

119.169.128.0/18

124.143.0.0/17

125.8.64.0/18

61.25.0.0/16

61.26.0.0/17

110.131.0.0/16

210.194.0.0/17

125.8.0.0/16

125.15.128.0/17

110.128.0.0/13

125.11.0.0/17

61.21.128.0/17

125.14.0.0/17

125.15.0.0/17

119.171.0.0/17

125.8.192.0/18

125.13.0.0/18

210.194.128.0/17

119.170.192.0/18

124.141.0.0/16

59.171.128.0/17

61.26.0.0/16

110.129.192.0/18

116.220.128.0/17

119.168.128.0/17

124.143.0.0/16

124.140.0.0/17

124.140.0.0/16

119.169.128.0/17

59.170.128.0/18

27.136.0.0/13

61.22.192.0/18

42.150.128.0/18

110.129.0.0/16

42.151.0.0/16

210.194.0.0/16

119.173.0.0/16

125.10.128.0/17

124.145.0.0/17

42.144.0.0/13

125.9.128.0/17

116.220.0.0/17

116.223.0.0/17

60.58.0.0/16

125.12.128.0/17

125.11.0.0/16

210.20.128.0/17

125.8.128.0/18

125.13.192.0/18

42.150.0.0/18

61.22.128.0/18

110.129.128.0/18

119.172.0.0/17

61.27.0.0/16

61.25.0.0/17

119.174.0.0/17

110.135.192.0/18

125.11.0.0/18

124.140.128.0/17

119.173.128.0/17

124.145.128.0/18

61.23.128.0/17

124.142.128.0/17

119.175.128.0/17

42.150.64.0/18

116.220.0.0/16

110.130.0.0/16

119.168.0.0/17

124.142.0.0/17

210.20.0.0/17

116.222.64.0/18

119.170.0.0/18

IPv6 Prefixes (62)

2001:ff0:3800::/37

2001:ff0:a800::/37

2405:1203:c000::/34

2405:1204:c000::/34

2405:1202:4000::/34

2405:1201:4000::/34

2001:ff0:b800::/37

2001:ff0:9000::/37

2001:ff0:7000::/37

2001:ff0:f000::/37

2001:ff0:4000::/37

2001:ff0:e800::/37

2405:1200:c000::/34

2405:1204::/34

2001:ff0:c000::/37

2405:1201::/34

2405:1200:8000::/34

2001:ff0:2800::/37

2405:1203::/34

2405:1201:c000::/34

2001:ff0:6800::/37

2405:1202::/34

2001:ff0:e000::/37

2405:1206:c000::/34

2001:ff0::/37

2001:ff0:d800::/37

2001:ff0:b000::/37

2001:ff0:3000::/37

2001:ff0:5000::/37

2001:ff0:9800::/37

2001:ff0:1800::/37

2001:ff0:7800::/37

2405:1200::/29

2001:ff0::/32

2001:ff0:4800::/37

2405:1200:4000::/34

2405:1203:4000::/34

2001:ff0:1000::/37

2001:ff0:800::/37

2405:1204:8000::/34

2405:1201:8000::/34

2001:ff0:2000::/37

2405:1206::/34

2001:ff0:5800::/37

2405:1205:c000::/34

2405:1204:4000::/34

2405:1205::/34

2405:1203:8000::/34

2405:1205:4000::/34

2405:1202:c000::/34

2001:ff0:c800::/37

2405:1205:8000::/34

2405:1206:8000::/34

2001:ff0:a000::/37

2405:1200::/34

2001:ff0:8800::/37

2405:1206:4000::/34

2001:ff0:6000::/37

2405:1202:8000::/34

2001:ff0:f800::/37

2001:ff0:8000::/37

2001:ff0:d000::/37

BGP Peers (1)

AS49544i3D.net B.V

My IP ASN Lookup IP Lookup WHOIS DNS Lookup

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.