AS397952 Nexstream

United States AS397952 ARIN 3 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

1,536

IPv6 /48 networks

65,536

RPKI

4 valid0 no ROA

Peers and downstreams

Holder

AS name: AS397952
Description: 415 S Washington St Fredericksburg TX 78624 United States
Organisation: Nexstream
Abuse contact: Not published
Assigned: 2019-09-17
Registered: 2019-09-18
Record last changed: 2019-09-18 12:35 UTC

158.51.107.0/24 199.116.52.0/22 23.135.240.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 85/100

pass	Prefixes covered by valid ROAs 4 of 4 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 1 IPv6 prefix.	15/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@nexstream.net 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 2019-09-18.	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/397952"><img src="https://ip-fd.net/badge/asn/397952/health.svg" alt="AS397952 network health on IP-FD.net"></a>

Markdown

[![AS397952 network health](https://ip-fd.net/badge/asn/397952/health.svg)](https://ip-fd.net/asn/397952)

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

Routing changes

Last 30 days

2026-10-05 12:12 UTC	Neighbour gone	AS209823	peer
2026-10-05 12:12 UTC	Relationship changed	AS971	upstream to peer
2026-10-05 12:12 UTC	Relationship changed	AS4230	upstream to peer
2026-10-05 12:12 UTC	Relationship changed	AS35280	upstream to peer
2026-10-05 12:12 UTC	Relationship changed	AS32097	upstream to peer
2026-10-05 12:12 UTC	Relationship changed	AS25091	upstream to peer
2026-10-05 12:12 UTC	Relationship changed	AS20326	upstream to peer
2026-10-05 12:12 UTC	Relationship changed	AS137409	upstream to peer

WHOIS

aut-num:        AS397952
as-name:        NEXSTREAM
handle:         AS397952
registrant:     ITML-2 (Nexstream)
abuse,routing,dns:NETWO9161-ARIN (Network) <abuse@nexstream.net>
noc,technical,administrative:KINGP11-ARIN (Patrick King) <pking@4iptech.com>
dns,noc,routing,technical,abuse:POUSS5-ARIN (Spencer Pous) <spous@nexstream.net>
last changed:   2019-09-18T08:35:12-04:00
registration:   2019-09-18T08:35:12-04:00
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/397952

const res = await fetch('https://ip-fd.net/api/v1/asn/397952', {
  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/397952', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/397952');
curl_setopt($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/397952", 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.

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AS4230	CLARO S.A. AS4230
AS14907	Wikimedia Foundation Inc. WIKIMEDIA
AS20326	TeraSwitch Networks Inc. TERASWITCH
AS25091	IP-Max SA IP-Max
AS32097	WholeSale Internet, Inc. WII
AS35280	F5 Networks SARL F5
AS49544	i3D.net B.V i3Dnet
AS137409	GSL Networks Pty LTD GSLNETWORKS-AS-AP

AS174
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