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

AS20214

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS20214

NameCOMCAST-20214

OrganisationComcast Cable Communications, LLC

Country –

RIRARIN

Allocated06.04.2001

Network Overview

IPv4 Prefixes22

IPv6 Prefixes95

Upstreams (Transit)2

Downstreams (Customers)24

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS3356Lumen (Level 3)AS7922Comcast Cable Communications, LLC

AS20214COMCAST-20214

Downstreams (Customers)

AS12013Florida Atlantic University AS14310Safra National Bank Of New York AS16423NETTOGO AS17035NBCUniversal AS19899Miami Dade College AS22032Ocean Reef Club, Inc.+18

Upstreams (Transit) (2)

AS3356Lumen (Level 3)

AS7922Comcast Cable Communications, LLC

Downstreams (Customers) (24)

AS12013Florida Atlantic University

AS14310Safra National Bank Of New York

AS16423NETTOGO

AS17035NBCUniversal

AS19899Miami Dade College

AS22032Ocean Reef Club, Inc.

AS31812Palm Beach County Sheriff's Office

AS33580Venturetech Solutions, LLC

AS36040Google (Global Cache)

AS393843WPLG-TV

AS395619The College of Florida Keys

AS396235Town of Davie

IPv4 Prefixes (22)

50.224.22.0/24

50.237.82.0/24

168.221.176.0/20

50.202.4.0/24

168.221.0.0/16

50.200.25.0/24

50.202.227.0/24

50.150.146.0/24

50.200.159.0/24

50.222.172.0/24

141.193.53.0/24

50.224.249.0/24

50.205.246.0/23

147.137.0.0/16

168.221.171.0/24

50.237.224.0/24

50.202.167.0/24

50.224.11.0/24

50.229.72.0/24

50.216.237.0/24

50.233.138.0/23

50.224.86.0/24

IPv6 Prefixes (95)

2001:559:4ef::/48

2001:559:8568::/48

2001:559:8334::/48

2001:559:c119::/48

2001:559:c520::/48

2001:559:c0d0::/48

2001:559:c0ba::/48

2001:559:140::/48

2001:559:c4f2::/48

2001:559:821d::/48

2001:559:c47b::/48

2001:559:7c9::/48

2001:559:c164::/48

2001:559:168::/48

2001:559:8798::/48

2001:559:8502::/48

2001:559:86c9::/48

2001:559:8797::/48

2001:559:c25b::/48

2001:559:c4f1::/48

2001:559:8332::/48

2001:559:c030::/48

2001:559:c557::/48

2001:559:401::/48

2001:559:c4c3::/48

2001:559:c03b::/48

2001:559:89::/48

2001:559:71c::/48

2001:559:8425::/48

2001:559:4d4::/48

2001:559:8762::/48

2001:559:463::/48

2001:559:514::/48

2001:559:c3ce::/48

2001:559:81d1::/48

2001:559:c246::/48

2001:559:85be::/48

2001:559:c03c::/48

2001:559:85bf::/48

2001:559:846c::/48

2001:559:1ac::/48

2001:559:870f::/48

2001:559:160::/48

2001:559:c0b9::/48

2001:559:478::/48

2001:559:c111::/48

2001:559:232::/48

2001:559:55c::/48

2001:559:c1f5::/48

2001:559:2cf::/48

2001:559:804f::/48

2001:559:1cd::/48

2001:559:852b::/48

2001:559:7c7::/48

2001:559:2a0::/48

2001:559:18b::/48

2001:559:142::/48

2001:559:8751::/48

2001:559:c4f0::/48

2001:559:84ef::/48

2001:559:c25c::/48

2001:559:8106::/48

2001:559:c02f::/48

2001:559:77e::/48

2001:559:c0d1::/48

2001:559:c52c::/48

2001:559:554::/48

2001:559:116::/48

2001:559:81d2::/48

2001:559:c51b::/48

2001:559:8750::/48

2001:559:1cb::/48

2001:559:c501::/48

2001:559:8077::/48

2001:559:5ae::/48

2001:559:8112::/48

2001:559:815b::/48

2001:559:c427::/48

2001:559:ea::/48

2001:559:281::/48

2001:559:84c6::/48

2001:559:85af::/48

2001:559:8075::/48

2001:559:386::/48

2001:559:81d3::/48

2001:559:3e6::/48

2001:559:5af::/48

2001:559:c245::/48

2001:559:2f8::/48

2001:559:c55e::/48

2001:559:c136::/48

2001:559:c1b3::/48

2001:559:205::/48

2001:559:c440::/48

2001:559:c1ac::/48

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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.