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

AS54103

ASN

ARIN

RIR

437

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS54103

NameMODMC-54103-AS

OrganisationMOD Mission Critical, LLC

Country –

RIRARIN

Allocated06.05.2015

Abuse contactsupport@modmc.net

Network Overview

IPv4 Prefixes437

IPv6 Prefixes5

Upstreams (Transit)10

Downstreams (Customers)2

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS1299Arelion (fka. Telia Carrier)AS174Cogent Communications, LLC AS20055Ziply Fiber AS286GTT Communications Inc.AS3257GTT Communications Inc.AS3356Lumen (Level 3)+4

AS54103MODMC-54103-AS

Downstreams (Customers)

AS40061UnitedLayer, LLC AS6260MOD Mission Critical, LLC

Upstreams (Transit) (10)

AS1299Arelion (fka. Telia Carrier)

AS174Cogent Communications, LLC

AS20055Ziply Fiber

AS286GTT Communications Inc.

AS3257GTT Communications Inc.

AS3356Lumen (Level 3)

AS54004Cablevision Lightpath LLC

AS6461Zayo Bandwidth

AS7922Comcast Cable Communications, LLC

AS852TELUS Communications Inc.

Downstreams (Customers) (2)

AS40061UnitedLayer, LLC

AS6260MOD Mission Critical, LLC

IPv4 Prefixes (256)

207.199.145.0/24

193.26.112.0/24

206.246.119.0/24

207.199.146.0/24

216.155.39.0/24

79.143.131.0/24

207.199.177.0/24

103.51.34.0/24

216.155.25.0/24

216.155.63.0/24

206.246.102.0/24

104.143.110.0/24

206.246.127.0/24

67.203.43.0/24

216.107.43.0/24

216.155.62.0/24

206.246.93.0/24

206.246.78.0/24

206.246.85.0/24

216.107.10.0/24

103.87.253.0/24

45.143.193.0/24

64.6.177.0/24

193.26.113.0/24

134.202.4.0/24

45.250.10.0/24

206.246.79.0/24

206.246.101.0/24

67.219.24.0/24

216.155.38.0/24

104.165.59.0/24

103.51.33.0/24

67.227.50.0/24

184.174.105.0/24

5.10.199.0/24

216.74.93.0/24

67.219.31.0/24

209.147.80.0/24

67.203.47.0/24

45.73.189.0/24

216.155.5.0/24

67.203.44.0/24

103.219.16.0/24

209.147.64.0/24

216.107.16.0/24

216.107.22.0/24

216.155.41.0/24

216.155.35.0/24

216.155.23.0/24

206.246.87.0/24

216.107.59.0/24

207.199.141.0/24

66.78.14.0/24

207.199.184.0/24

216.107.8.0/24

216.155.1.0/24

206.246.82.0/24

206.246.75.0/24

206.246.116.0/24

104.165.58.0/24

67.219.29.0/24

103.76.187.0/24

40.223.47.0/24

67.227.60.0/24

216.155.44.0/24

45.73.188.0/24

104.143.106.0/24

216.10.15.0/24

207.199.150.0/24

216.107.25.0/24

216.74.89.0/24

207.199.188.0/24

206.246.109.0/24

67.219.30.0/24

209.147.85.0/24

40.223.44.0/24

103.219.19.0/24

209.147.77.0/24

64.6.176.0/24

40.223.3.0/24

67.227.55.0/24

216.155.4.0/24

40.183.85.0/24

209.147.67.0/24

103.87.252.0/24

67.203.46.0/24

45.87.23.0/24

216.107.35.0/24

216.107.49.0/24

206.246.91.0/24

216.107.48.0/24

216.155.37.0/24

216.155.36.0/24

207.199.181.0/24

103.51.35.0/24

104.164.246.0/24

207.199.158.0/24

206.246.125.0/24

216.155.60.0/24

66.78.15.0/24

207.199.173.0/24

207.199.178.0/24

216.107.56.0/24

45.88.121.0/24

206.246.103.0/24

206.246.68.0/24

216.74.95.0/24

206.246.86.0/24

185.243.247.0/24

134.202.0.0/24

216.107.55.0/24

216.107.44.0/24

209.147.86.0/24

104.164.245.0/24

67.227.56.0/24

40.27.247.0/24

216.155.22.0/24

206.246.64.0/24

203.159.85.0/24

64.6.181.0/24

207.199.180.0/24

206.246.121.0/24

216.107.2.0/24

216.155.12.0/24

184.174.104.0/24

207.199.187.0/24

5.10.193.0/24

207.199.163.0/24

206.246.111.0/24

104.165.53.0/24

40.183.84.0/24

209.147.72.0/24

216.107.61.0/24

216.107.30.0/24

206.246.76.0/24

212.124.85.0/24

40.27.8.0/24

216.107.51.0/24

207.199.153.0/24

216.155.52.0/24

216.155.29.0/24

207.199.183.0/24

67.227.63.0/24

66.78.9.0/24

206.246.67.0/24

173.211.59.0/24

40.183.249.0/24

206.246.124.0/24

216.107.38.0/24

209.147.95.0/24

216.107.58.0/24

207.199.135.0/24

216.107.28.0/24

207.199.155.0/24

216.155.57.0/24

206.246.90.0/24

212.124.87.0/24

173.211.62.0/24

216.155.49.0/24

103.48.33.0/24

45.87.21.0/24

216.107.53.0/24

157.97.124.0/22

206.246.108.0/24

209.147.75.0/24

206.246.100.0/24

173.211.63.0/24

216.10.14.0/24

103.48.32.0/24

194.76.133.0/24

203.159.87.0/24

103.51.32.0/24

45.250.8.0/24

40.27.9.0/24

40.223.2.0/24

207.199.185.0/24

45.250.9.0/24

40.27.246.0/24

45.133.255.0/24

216.74.94.0/24

46.244.116.0/22

45.134.131.0/24

216.74.92.0/24

216.107.3.0/24

64.6.183.0/24

216.107.7.0/24

206.246.77.0/24

206.246.66.0/24

207.199.168.0/24

45.250.11.0/24

216.107.6.0/24

207.199.148.0/24

209.147.88.0/24

173.211.60.0/24

216.107.23.0/24

184.174.107.0/24

67.203.41.0/24

209.147.65.0/24

103.219.17.0/24

216.107.46.0/24

216.107.31.0/24

67.227.58.0/24

216.155.21.0/24

134.202.25.0/24

206.246.89.0/24

40.27.11.0/24

67.203.18.0/24

64.6.179.0/24

207.199.133.0/24

206.246.123.0/24

194.76.132.0/24

216.155.50.0/24

216.155.16.0/24

207.199.186.0/24

207.199.164.0/24

67.203.42.0/24

216.155.0.0/24

216.107.39.0/24

134.202.1.0/24

216.107.62.0/24

104.165.44.0/24

203.159.89.0/24

195.128.179.0/24

216.74.91.0/24

216.155.43.0/24

104.143.105.0/24

216.155.54.0/24

104.143.109.0/24

207.199.138.0/24

216.107.36.0/24

67.203.45.0/24

207.199.154.0/24

216.155.47.0/24

216.107.52.0/24

216.107.29.0/24

216.155.7.0/24

173.211.57.0/24

209.147.78.0/24

209.147.94.0/24

79.143.137.0/24

67.227.48.0/24

216.155.28.0/24

216.107.13.0/24

216.155.56.0/24

104.165.56.0/24

209.147.79.0/24

206.246.73.0/24

216.155.61.0/24

216.107.42.0/24

216.107.19.0/24

216.107.32.0/24

134.202.63.0/24

79.143.139.0/24

173.211.61.0/24

209.147.84.0/24

209.147.83.0/24

IPv6 Prefixes (5)

2a04:e00:5::/48

2a04:e00:4::/48

2a04:e00:15::/48

2a04:e00:1f::/48

2a04:e00:16::/48

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.