55.0.0.0/8

AS721 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS721
Registry	ARIN
ID	CONUS-RCAS

WHOIS Details

NetHandle:      NET-55-0-0-0-2
OrgID:          HEADQU-3
Parent:         NET-55-0-0-0-1
NetName:        CONUS-RCAS
NetRange:       55.0.0.0 - 55.255.255.255
NetType:        reallocation
RegDate:        2025-08-20
Updated:        2025-08-20
Source:         ARIN


OrgID:          HEADQU-3
OrgName:        Headquarters, USAISC
CanAllocate:    
Street:         NETC-ANC CONUS TNOSC
City:           Fort Huachuca
State/Prov:     AZ
Country:        US
PostalCode:     85613
RegDate:        1990-03-26
Updated:        2025-03-13
OrgAdminHandle: REGIS10-ARIN
OrgTechHandle:  REGIS10-ARIN
OrgAbuseHandle: REGIS10-ARIN
Source:         ARIN


POCHandle:      REGIS10-ARIN
IsRole:         Y
LastName:       Registration
FirstName:      
Street:         DISA-Columbus
Street:         300 North James Road
City:           Whitehall
State/Prov:     OH
Country:        US
PostalCode:     43213
RegDate:        2009-06-24
Updated:        2026-02-12
OfficePhone:    +1-844-347-2457
Mailbox:        disa.columbus.ns.mbx.arin-registrations@mail.mil
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 55.0.0.0/8

Range	ASN	Company	Num of IPs
55.15.0.0/16	AS306	Headquarters, USAISC	65,536
55.23.0.0/16	AS349	NATIONAL GUARD BUREAU	65,536
55.16.0.0/16	AS364	Headquarters, USAISC	65,536

Hosted domains

There are 126 domain names hosted across 72 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
55.223.52.2	nfkey.so	6
55.141.72.18	efnkmait.com	4
55.200.197.31	pa-imports.com	4
55.222.169.231	immo-suchmaschine.com	2
55.187.2.111	ieumaltacampus.com	2
55.66.77.88	domain2026.icu	2
55.117.111.17	onyijwrfitf.net	2
55.164.189.205	revolutionbarsgroup.co.uk	1
55.144.160.20	pupay.us	1
55.222.88.43	sixtyhertz.org	1
55.129.77.15	cipkenop.com	1
55.215.73.125	thedabclub.com.ar	1
55.33.8.180	globeluxadventures.com	1
55.189.167.228	gate24ex.com	1
55.222.139.177	mustiquegroupmedia.net	1
55.118.7.99	insiemepergliultimi.com	1
55.222.27.162	purecotton.com.au	1
55.198.52.202	huntingcontrol.com.br	1
55.183.102.22	beaut4ashesmin.org	1
55.223.37.0	fflintakes.com	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range 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
77.60.152.184	AS1136 KPN B.V.	`2.69ms` from Amsterdam, NL
175.178.33.232	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.22ms` from Guangzhou, CN
111.123.58.136	AS4134 CHINANET BACKBONE	`1.51ms` from Guiyang, CN
85.211.138.104	AS8075 Microsoft Corporation	`0.17ms` from Kuala Lumpur, MY
50.87.212.184	AS31898 Oracle Corporation	`1.03ms` from Phoenix, US
54.86.43.120	AS14618 Amazon.com, Inc.	`0.42ms` from Reston, US
172.215.177.184	AS8075 Microsoft Corporation	`0.25ms` from San Antonio, US
210.204.47.152	AS4766 Korea Telecom	`4.29ms` from Seoul, KR
114.160.111.88	AS4713 NTT DOCOMO BUSINESS,Inc.	`16.54ms` from Tokyo, JP
193.154.201.200	AS8447 A1 Telekom Austria AG	`2.63ms` from Vienna, AT
152.53.104.24	AS197540 netcup GmbH	`0.71ms` from Amsterdam, NL
80.228.107.8	AS9145 EWE TEL GmbH	`9.98ms` from Amsterdam, NL
20.102.30.216	AS8075 Microsoft Corporation	`0.45ms` from Ashburn, US
100.23.148.72	AS16509 Amazon.com, Inc.	`0.22ms` from Boardman, US
5.12.251.120	AS8708 DIGI ROMANIA S.A.	`0.72ms` from Bucharest, RO
34.61.54.24	AS396982 Google LLC	`0.14ms` from Council Bluffs, US
199.176.64.184	AS20057 AT&T Enterprises, LLC	`1.07ms` from Dallas, US
79.215.103.216	AS3320 Deutsche Telekom AG	`6.31ms` from Frankfurt am Main, DE
2.100.229.232	AS13285 TalkTalk Communications Limited	`6.48ms` from Manchester, GB
123.152.147.216	AS4837 CHINA UNICOM China169 Backbone	`1.81ms` from Ningbo, CN
179.160.154.40	AS26599 TELEFÔNICA BRASIL S.A	`4.27ms` from Osasco, BR
4.227.122.120	AS8075 Microsoft Corporation	`0.33ms` from Phoenix, US
187.200.1.40	AS8151 UNINET	`8.79ms` from Santiago de Queretaro, MX
119.218.83.88	AS4766 Korea Telecom	`4.73ms` from Seoul, KR
95.198.215.200	AS3301 Telia Company AB	`14.40ms` from Stockholm, SE

Traceroute

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

traceroute -a -n -q1 -m7 55.178.157.207

traceroute to 55.178.157.207 (55.178.157.207): 7 hops max, 52 byte packets

1 [AS33876] 185.11.167.3 314.757 ms

2 *

3 *

4 [AS24768] 94.46.128.40 6.754 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Faro, PT

On April 24th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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