AS103

27 IPv4 prefixes 3 IPv6 prefixes

IPv4 addresses

149,504

IPv6 /48 networks

256

RPKI

0 valid2 invalid28 no ROA

Peers and downstreams

Holder

AS name
Organisation: Not published
Abuse contact: Not published
Registered: 1987-04-09
Record last changed: 2012-04-02 14:31 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade D · 50/100

fail	Prefixes covered by valid ROAs 0 of 30 announced prefixes are RPKI valid, 28 have no ROA.	0/25
fail	No RPKI invalid announcements 2 announced prefixes are RPKI invalid and dropped by networks that validate.	0/10
pass	Announces IPv6 3 IPv6 prefixes.	15/15
pass	More than one upstream 6 upstreams seen in BGP.	10/10
pass	Working abuse contact security@northwestern.edu is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
fail	Registry record maintained Last changed 2012-04-02.	0/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/103"><img src="https://ip-fd.net/badge/asn/103/health.svg" alt="AS103 network health on IP-FD.net"></a>

Markdown

[![AS103 network health](https://ip-fd.net/badge/asn/103/health.svg)](https://ip-fd.net/asn/103)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS103
as-name:        NWU-AS
handle:         AS103
registrant:     NORTHW-9-Z (Northwestern University)
administrative: NTN7-ARIN (NUIT TNS) <data-network@northwestern.edu>
abuse:          NUNS-ARIN (Northwestern University Network Security) <security@northwestern.edu>
technical:      NUNA-ARIN (Northwestern University Network Administration) <data-network@northwestern.edu>
abuse:          NUNS-ARIN (Northwestern University Network Security) <security@northwestern.edu>
noc:            NUN-ARIN (Northwestern University NOC) <data-network@northwestern.edu>
technical:      NUNA-ARIN (Northwestern University Network Administration) <data-network@northwestern.edu>
last changed:   2012-04-02T10:31:36-04:00
registration:   1987-04-09T00:00:00-04:00
source:         ARIN (RDAP)

Routing data

Updated just now

Registry record

Fetched just now from ARIN RDAP

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/103

const res = await fetch('https://ip-fd.net/api/v1/asn/103', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/103', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/103');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/103", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

AS174
AS2381	WiscNet WISCNET1-AS
AS3356	Level 3 Parent, LLC LEVEL3
AS22335	Metropolitan Research and Education Network MREN
AS33491	Comcast Cable Communications, LLC COMCAST-33491
AS149433	FM Networks FM-AS-AP

AS293	Esnet ESNET
AS11164	Internet2 INTERNET2-I2PX
AS11537	Internet2 INTERNET2-RESEARCH-EDU
AS65502