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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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
73.147.194.133 AS7922 Comcast Cable Communications, LLC 10.13ms from Ashburn, US
182.76.102.197 AS9498 BHARTI Airtel Ltd. 0.87ms from Delhi, IN
45.81.145.101 AS208859 FACT LTD 3.11ms from Erbil, IQ
52.57.232.181 AS16509 Amazon.com, Inc. 0.19ms from Frankfurt am Main, DE
168.149.51.149 AS25019 Saudi Telecom Company JSC 1.23ms from Jeddah, SA
203.132.135.197 AS9498 BHARTI Airtel Ltd. 0.78ms from Mumbai, IN
167.206.19.5 AS6128 Cablevision Systems Corp. 1.56ms from New York City, US
173.61.173.5 AS701 Verizon Business 4.03ms from New York City, US
123.208.239.117 AS135887 Belong (Telstra Limited) 2.38ms from Perth, AU
217.168.134.133 AS20552 Horyzont Technologie Internetowe sp.z.o.o. 0.49ms from Poznan, PL
191.58.3.245 AS4230 CLARO S.A. 17.19ms from Sao Paulo, BR
123.120.111.53 AS4808 China Unicom Beijing Province Network 3.98ms from Beijing, CN
35.160.47.5 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
201.219.68.149 AS14232 Cooperativa Telefónica Pinamar Ltda. 8.81ms from Buenos Aires, AR
72.135.247.213 AS10796 Charter Communications Inc 7.09ms from Chicago, US
125.99.1.37 AS17488 Hathway IP Over Cable Internet 1.51ms from Delhi, IN
94.4.38.181 AS5607 Sky UK Limited 5.82ms from Erith, GB
213.162.103.149 AS6871 Plusnet 2.37ms from Erith, GB
92.45.28.197 AS34984 Superonline Iletisim Hizmetleri A.S. 2.67ms from Istanbul, TR
179.54.38.21 AS26615 TIM S/A 0.82ms from Osasco, BR
2.196.198.181 AS16232 Telecom Italia S.p.A. 19.53ms from Rome, IT
98.241.191.117 AS7922 Comcast Cable Communications, LLC 1.30ms from San Jose, US
201.98.28.245 AS8151 UNINET 3.97ms from Santiago de Queretaro, MX
54.180.55.133 AS16509 Amazon.com, Inc. 0.40ms from Seoul, KR
165.21.247.229 AS3758 SingNet 1.01ms from Singapore, SG

Traceroute

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

$
traceroute -a -n -q1 -m5 55.49.20.236
traceroute to 55.49.20.236 (55.49.20.236): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Abu Dhabi, AE
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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