Autonomous System details

AS357

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

United States
    Stub AS Icon Stub AS

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AS357 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 4
IPv4 addresses 393,216
IPv6 addresses 0
ASN type Government
Registry arin
Allocated 37 years ago on Jun 30, 1989
Updated 5 months ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
55.49.0.0/16 Headquarters, USAISC 65,536
55.76.0.0/16 Headquarters, USAISC 65,536
55.77.0.0/16 Headquarters, USAISC 65,536
55.90.0.0/16 Headquarters, USAISC 65,536
55.98.0.0/16 Headquarters, USAISC 65,536
55.99.0.0/16 Headquarters, USAISC 65,536
55.77.0.0/17 Headquarters, USAISC 32,768
55.77.128.0/18 Headquarters, USAISC 16,384
55.98.0.0/18 Headquarters, USAISC 16,384
55.98.128.0/18 Headquarters, USAISC 16,384
55.98.192.0/18 Headquarters, USAISC 16,384
55.77.192.0/19 Headquarters, USAISC 8,192
55.98.64.0/19 Headquarters, USAISC 8,192
55.98.96.0/19 Headquarters, USAISC 8,192
55.77.224.0/20 Headquarters, USAISC 4,096
55.77.248.0/21 Headquarters, USAISC 2,048

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS357
                                                OrgID:          AS357
                                                ASName:         AS357
                                                ASNumber:       AS357
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 4 domain names hosted across 1 IP address on this ASN.

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IP Address Domain Domains on this IP
55.76.177.85 ██████████ 4

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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
115.183.68.21 AS4808 China Unicom Beijing Province Network 5.28ms from Beijing, CN
100.23.83.181 AS16509 Amazon.com, Inc. 0.58ms from Boardman, US
184.106.61.181 AS19994 Rackspace Hosting 1.27ms from Chicago, US
169.150.158.5 AS398203 MidSouth Fiber 7.92ms from Dallas, US
223.177.239.133 AS24560 Bharti Airtel Ltd., Telemedia Services 9.12ms from Delhi, IN
81.2.96.213 AS20712 Andrews & Arnold Ltd 2.35ms from London, GB
82.10.247.53 AS5089 Virgin Media Limited 10.71ms from London, GB
51.52.95.149 AS31655 Gamma Telecom Holdings Ltd 2.99ms from Manchester, GB
31.131.240.5 AS12874 Fastweb SpA 0.57ms from Milan, IT
93.42.221.181 AS12874 Fastweb SpA 1.18ms from Milan, IT
213.252.110.117 AS5523 CREDO TELECOM 0.82ms from Moscow, RU
167.20.252.53 AS21928 T-Mobile USA, Inc. 10.88ms from New York City, US
75.214.134.149 AS6167 Verizon Business 10.13ms from New York City, US
218.221.171.37 AS2527 Sony Network Communications Inc. 2.41ms from Osaka, JP
152.250.193.117 AS27699 TELEFÔNICA BRASIL S.A 1.94ms from Osasco, BR
23.208.50.101 AS16625 Akamai Technologies, Inc. 0.17ms from Philadelphia, US
185.63.104.5 AS59984 KLFREE NETWORKS, s.r.o. 1.07ms from Prague, CZ
39.74.192.117 AS4837 CHINA UNICOM China169 Backbone 8.29ms from Qingdao, CN
173.11.82.101 AS7922 Comcast Cable Communications, LLC 6.15ms from San Jose, US
20.245.37.245 AS8075 Microsoft Corporation 0.55ms from San Jose, US
121.251.30.5 AS4538 China Education and Research Network Center 19.12ms from Shanghai, CN
3.1.90.133 AS16509 Amazon.com, Inc. 0.16ms from Singapore, SG
202.52.58.5 AS46058 PT. Triwahana Gemasakti 12.41ms from Singapore, SG
188.128.215.101 AS12824 home.pl sp. z o.o. 1.22ms from Warsaw, PL
77.166.178.181 AS1136 KPN B.V. 2.87ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 -f2 -m8 55.90.249.25
traceroute to 55.90.249.25 (55.90.249.25): 8 hops max, 52 byte packets
2 [AS917] 199.119.65.2 0.161 ms
3 *
4 *
5 [AS1299] 62.115.203.18 6.218 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Ashburn, US
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 AS357 at robtex.

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