AS637 United States Department of Defense (DoD)

United States DNIC-ASBLK-00616-00665 ARIN 546 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

IPv6 /48 networks

0 valid546 no ROA

Peers and downstreams

Holder

AS name: DNIC-ASBLK-00616-00665
Description: United States Department of Defense (DoD)
Organisation: United States Department of Defense (DoD)
Abuse contact: Not published
Assigned: 1990-04-18
Registered: 1990-04-19
Record last changed: 2025-09-12 13:58 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade E · 35/100

fail	Prefixes covered by valid ROAs 0 of 546 announced prefixes are RPKI valid, 546 have no ROA.	0/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 3 upstreams seen in BGP.	10/10
fail	Working abuse contact No abuse contact is published in the registry.	0/15
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
pass	Registry record maintained Last changed 2025-09-12.	5/5

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

<a href="https://ip-fd.net/asn/637"><img src="https://ip-fd.net/badge/asn/637/health.svg" alt="AS637 network health on IP-FD.net"></a>

[![AS637 network health](https://ip-fd.net/badge/asn/637/health.svg)](https://ip-fd.net/asn/637)

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:        AS637
as-name:        DNIC-ASBLK-00616-00665
handle:         AS616
registrant:     USDDD (United States Department of Defense (DoD))
noc,abuse,technical:MIL-HSTMST-ARIN (Network DoD) <disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil>
administrative,technical:REGIS10-ARIN (Registration) <disa.columbus.ns.mbx.arin-registrations@mail.mil>
last changed:   2025-09-12T09:58:08-04:00
registration:   1990-04-19T00:00:00-04:00
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.

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/637

const res = await fetch('https://ip-fd.net/api/v1/asn/637', {
  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/637', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/637');
curl_setopt($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/637", 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.

AS27064	United States Department of Defense (DoD) DNIC-ASBLK-27032-27159
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AS27066	United States Department of Defense (DoD) DNIC-ASBLK-27032-27159