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 36 years ago on Jun 30, 1989
Updated 3 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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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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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
159.100.114.229 AS33915 Vodafone Libertel B.V. 0.96ms from Amsterdam, NL
155.207.62.53 AS5470 AUTH-NET-AS 10.11ms from Athens, GR
61.91.103.37 AS7470 TRUE INTERNET Co.,Ltd. 1.19ms from Bangkok, TH
81.0.22.229 AS15704 XTRA TELECOM S.A. 1.04ms from Barcelona, ES
94.5.17.21 AS5607 Sky UK Limited 1.59ms from Erith, GB
113.178.76.85 AS45899 VNPT Corp 1.37ms from Hanoi, VN
123.202.212.245 AS9269 Hong Kong Broadband Network Ltd. 1.03ms from Hong Kong, HK
79.148.42.213 AS3352 TELEFONICA DE ESPANA S.A.U. 1.37ms from Madrid, ES
60.107.58.197 AS17676 SoftBank Corp. 3.64ms from Osaka, JP
23.106.146.197 AS25820 IT7 Networks Inc 0.43ms from Osaka, JP
99.105.213.165 AS7018 AT&T Enterprises, LLC 4.42ms from Santa Clara, US
115.55.23.149 AS4837 CHINA UNICOM China169 Backbone 5.40ms from Zhengzhou, CN
2.166.144.85 AS3320 Deutsche Telekom AG 14.13ms from Frankfurt am Main, DE
108.138.183.213 AS16509 Amazon.com, Inc. 0.21ms from Milan, IT
76.64.29.213 AS577 Bell Canada 4.70ms from Montreal, CA
90.70.13.69 AS3215 Orange S.A. 4.97ms from Paris, FR
98.190.200.149 AS22773 Cox Communications Inc. 0.77ms from Phoenix, US
98.88.62.149 AS14618 Amazon.com, Inc. 0.16ms from Reston, US
183.124.247.133 AS4766 Korea Telecom 7.61ms from Seoul, KR
125.226.223.133 AS3462 Data Communication Business Group 1.82ms from Taipei, TW
156.17.119.85 AS8970 Wroclaw Centre of Networking and Supercomputing 0.61ms from Wrocław, PL
50.127.220.165 AS5650 Frontier Communications of America, Inc. 12.04ms from Ashburn, US
52.154.244.117 AS8075 Microsoft Corporation 0.19ms from Des Moines, US
81.151.116.229 AS2856 British Telecommunications PLC 1.86ms from Erith, GB
120.199.245.53 AS56041 China Mobile communications corporation 3.12ms from Hangzhou, CN

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 55.99.30.240
traceroute to 55.99.30.240 (55.99.30.240): 9 hops max, 52 byte packets
5 [AS3356] 4.68.68.5 7.023 ms
6 [AS3356] 4.69.209.110 41.055 ms
7 *
8 *
9 *
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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