Autonomous System details

AS331

United States Department of Defense (DoD)  ·  mail.mil

United States
    Stub AS Icon Stub AS

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AS331 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 1
IPv4 addresses 196,608
IPv6 addresses 309,485,009,821,345,068,724,781,056
ASN type Government
Registry arin
Allocated 36 years ago on Jun 30, 1989
Updated 3 months ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
55.19.0.0/16 Headquarters, USAISC 65,536
55.65.0.0/16 Headquarters, USAISC 65,536
55.70.0.0/16 Headquarters, USAISC 65,536
55.19.2.0/24 Headquarters, USAISC 256
55.70.190.0/24 Headquarters, USAISC 256
55.70.214.0/24 Headquarters, USAISC 256
55.70.244.0/24 Headquarters, USAISC 256
55.70.245.0/24 Headquarters, USAISC 256
Netblock Company
2608:14a:2300::/40 United States Department of Defense (DoD)
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IP Ranges API

WHOIS Details

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                                                ASHandle:       AS331
                                                OrgID:          AS331
                                                ASName:         AS331
                                                ASNumber:       AS331
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There is 1 domain name hosted across 1 IP address on this ASN.

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Peers

There is 1 peer for this ASN.

Peers Name
AS306 United States Department of Defense (DoD)
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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS306 United States Department of Defense (DoD)
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

No IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
176.23.89.203 AS3292 TDC Holding A/S 4.33ms from Copenhagen, DK
73.223.191.139 AS7922 Comcast Cable Communications, LLC 2.71ms from Fremont, US
178.121.179.203 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 5.67ms from Minsk, BY
183.151.93.59 AS4134 CHINANET-BACKBONE 9.86ms from Nanchang, CN
114.224.147.11 AS4134 CHINANET-BACKBONE 4.88ms from Nanjing, CN
69.125.196.251 AS6128 Cablevision Systems Corp. 8.98ms from New York City, US
213.7.135.11 AS6866 Cyprus Telecommunications Authority 2.63ms from Nicosia, CY
121.174.93.123 AS4766 Korea Telecom 6.60ms from Seoul, KR
218.237.176.155 AS9318 SK Broadband Co Ltd 1.51ms from Seoul, KR
118.217.185.171 AS9318 SK Broadband Co Ltd 3.59ms from Seoul, KR
13.212.245.171 AS16509 Amazon.com, Inc. 0.46ms from Singapore, SG
92.34.110.75 AS8434 Telenor Sverige AB 2.82ms from Stockholm, SE
2.182.71.171 AS58224 Iran Telecommunication Company PJS 15.69ms from Yerevan, AM
171.8.125.107 AS4134 CHINANET-BACKBONE 7.40ms from Zhengzhou, CN
48.209.66.43 AS8075 Microsoft Corporation 1.26ms from Amsterdam, NL
52.25.221.123 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
71.71.175.139 AS11426 Charter Communications Inc 10.46ms from Charlotte, US
207.199.253.187 AS5056 Aureon Network Services 8.55ms from Chicago, US
93.71.63.59 AS30722 Vodafone Italia S.p.A. 4.59ms from Milan, IT
95.189.189.123 AS12389 PJSC Rostelecom 8.88ms from Novosibirsk, RU
56.126.33.251 AS16509 Amazon.com, Inc. 0.20ms from Osasco, BR
5.134.126.171 AS3242 REEVO S.P.A. 1.90ms from Rome, IT
24.199.99.139 AS14061 DigitalOcean, LLC 0.27ms from Santa Clara, US
186.6.136.123 AS6400 Compañía Dominicana de Teléfonos S. A. 1.62ms from Santo Domingo, DO
50.46.136.59 AS20055 Wholesail networks LLC 1.28ms from Seattle, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f5 -m9 55.70.106.220
traceroute to 55.70.106.220 (55.70.106.220): 9 hops max, 52 byte packets
5 [AS174] 154.54.61.82 0.985 ms
6 [AS174] 154.54.39.185 1.217 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS331 at robtex.

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