AS62523 CIRBN, LLC

United States CIRBN-LLC ARIN 18 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

16,640

IPv6 /48 networks

65,536

RPKI

13 valid6 no ROA

Peers and downstreams

Holder

AS name: CIRBN-LLC
Description: CIRBN LLC Network
Organisation: CIRBN, LLC
Abuse contact: Not published
Assigned: 2013-06-20
Registered: 2013-06-21
Record last changed: 2013-06-21 18:11 UTC

107.152.0.0/20 158.222.16.0/22 158.222.20.0/24 158.222.21.0/24 158.222.22.0/24 162.222.8.0/21 199.38.32.0/20 216.124.156.0/22 216.125.236.0/24 216.125.237.0/24 216.125.238.0/24 216.125.239.0/24 216.125.243.0/24 216.125.244.0/23 216.125.246.0/24 38.89.244.0/22 64.150.64.0/24 76.78.250.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 77/100

partly	Prefixes covered by valid ROAs 13 of 19 announced prefixes are RPKI valid, 6 have no ROA.	17/25
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@cirbn.org 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 2013-06-21.	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/62523"><img src="https://ip-fd.net/badge/asn/62523/health.svg" alt="AS62523 network health on IP-FD.net"></a>

Markdown

[![AS62523 network health](https://ip-fd.net/badge/asn/62523/health.svg)](https://ip-fd.net/asn/62523)

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

Routing changes

Last 30 days

2026-10-04 09:47 UTC	Relationship changed	AS8220	upstream to peer
2026-10-04 09:47 UTC	Relationship changed	AS25091	upstream to peer
2026-10-04 09:47 UTC	Relationship changed	AS20326	upstream to peer
2026-10-04 09:47 UTC	Relationship changed	AS137409	upstream to peer

WHOIS

aut-num:        AS62523
as-name:        CIRBN-LLC
handle:         AS62523
registrant:     CL-214 (CIRBN, LLC)
administrative,dns,noc,technical,routing:CTS22-ARIN (CIRBN Technical Staff) <internalsupport@cirbn.org>
abuse:          CAC86-ARIN (CIRBN Abuse Contact) <abuse@cirbn.org>
dns,routing,noc,technical,abuse:DLB152-ARIN (Derek L Barker) <dbarker@cirbn.org>
last changed:   2013-06-21T14:11:50-04:00
registration:   2013-06-21T14:11:50-04:00
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/62523

const res = await fetch('https://ip-fd.net/api/v1/asn/62523', {
  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/62523', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/62523');
curl_setopt($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/62523", 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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