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 7 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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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
41.141.15.85 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 8.39ms from Casablanca, MA
202.131.68.101 AS9381 HKBN Enterprise Solutions HK Limited 0.81ms from Hong Kong, HK
112.117.212.181 AS134765 CHINANET Yunnan province IDC1 network 0.60ms from Kunming, CN
120.151.72.69 AS1221 Telstra Limited 2.38ms from Melbourne, AU
189.136.131.101 AS8151 UNINET 5.08ms from Mexico City, MX
97.221.27.37 AS6167 Verizon Business 11.06ms from Miami, US
212.216.214.5 AS3269 Telecom Italia S.p.A. 4.32ms from Milan, IT
36.206.195.245 AS56046 China Mobile communications corporation 8.84ms from Nanjing, CN
218.221.171.37 AS2527 Sony Network Communications Inc. 2.39ms from Osaka, JP
149.22.91.85 AS212238 Datacamp Limited 0.20ms from Palermo, IT
98.241.191.117 AS7922 Comcast Cable Communications, LLC 1.28ms from San Jose, US
105.232.110.165 AS37009 MTC - Mobile Telecommunications, Ltd. 2.20ms from Windhoek, NA
141.57.28.181 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 6.79ms from Berlin, DE
52.35.122.133 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
35.160.47.5 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
91.179.49.213 AS5432 Proximus NV 0.98ms from Brussels, BE
41.30.189.37 AS29975 Vodacom 14.89ms from Centurion, ZA
69.40.160.53 AS7029 Windstream Communications LLC 14.27ms from Chicago, US
104.154.28.181 AS396982 Google LLC 0.13ms from Council Bluffs, US
47.188.79.213 AS5650 Frontier Communications of America, Inc. 1.44ms from Dallas, US
182.76.102.197 AS9498 BHARTI Airtel Ltd. 0.89ms from Delhi, IN
200.217.218.37 AS7738 V tal 0.36ms from Fortaleza, BR
91.3.66.197 AS3320 Deutsche Telekom AG 6.86ms from Frankfurt am Main, DE
111.43.5.53 AS132525 HeiLongJiang Mobile Communication Company Limited 6.22ms from Harbin, CN
136.232.174.85 AS55836 Reliance Jio Infocomm Limited 17.13ms from Kolkata, IN

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 55.49.220.29
traceroute to 55.49.220.29 (55.49.220.29): 7 hops max, 52 byte packets
3 [AS3356] 4.69.209.110 31.912 ms
4 [AS3356] 4.37.49.126 39.209 ms
5 *
6 *
7 *
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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