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

AS20249

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS20249

NameAS20249

OrganisationJefferies LLC

Country –

RIRARIN

Allocated08.07.2019

Abuse contactnetwork_engineering@Jefferies.com

Network Overview

IPv4 Prefixes52

IPv6 Prefixes0

Upstreams (Transit)21

Downstreams (Customers)0

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS10913Unitas Global AS133012Cocoa Oriental Network Limited AS13335Cloudflare, Inc.AS13789Unitas Global AS15570PACKETFABRIC (UK) LTD AS15830Equinix, Inc.+15

AS20249AS20249

Downstreams (Customers)

none

Upstreams (Transit) (21)

AS10913Unitas Global

AS133012Cocoa Oriental Network Limited

AS13335Cloudflare, Inc.

AS13789Unitas Global

AS15570PACKETFABRIC (UK) LTD

AS15830Equinix, Inc.

AS17675PacketFabric (Japan) Co., Ltd.

AS1828PacketFabric / Unitas Global

AS21859Zenlayer Inc

AS2686AT&T Enterprises, LLC

AS286GTT Communications Inc.

AS2914NTT America, Inc.

IPv4 Prefixes (52)

169.196.67.0/24

169.196.198.0/24

169.196.248.0/21

169.196.156.0/24

185.55.135.0/24

169.196.96.0/23

169.196.224.0/19

169.196.198.0/23

169.196.68.0/23

169.196.55.0/24

169.196.65.0/24

169.196.176.0/20

169.196.197.0/24

169.196.219.0/24

169.196.2.0/24

169.196.160.0/19

169.196.19.0/24

169.196.110.0/24

169.196.97.0/24

169.196.220.0/22

185.55.134.0/24

169.196.196.0/23

169.196.240.0/21

169.196.71.0/24

169.196.116.0/24

169.196.56.0/23

169.196.0.0/24

169.196.202.0/23

169.196.52.0/23

169.196.160.0/20

169.196.76.0/22

169.196.72.0/23

169.196.48.0/23

185.55.132.0/23

169.196.18.0/24

185.55.134.0/23

169.196.72.0/24

169.196.196.0/24

169.196.128.0/18

169.196.199.0/24

169.196.240.0/20

169.196.96.0/24

169.196.18.0/23

169.196.0.0/23

169.196.202.0/24

169.196.119.0/24

185.55.132.0/22

169.196.3.0/24

169.196.1.0/24

169.196.73.0/24

169.196.2.0/23

169.196.203.0/24

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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.