All IP Ranges
205.0.0.0/8
AS721 | 205.56.0.0/13

205.56.0.0/13

AS721 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	navy.mil
ASN	AS721
Registry	ARIN
ID	NETBLK-NIC-BLK1

WHOIS Details

NetHandle:      NET-205-56-0-0-2
OrgID:          NNICN-1
Parent:         NET-205-56-0-0-1
NetName:        NETBLK-NIC-BLK1
NetRange:       205.56.0.0 - 205.117.255.255
NetType:        reallocation
RegDate:        2025-08-15
Updated:        2025-08-15
Source:         ARIN


OrgID:          NNICN-1
OrgName:        Navy Network Information Center (NNIC)
CanAllocate:    
Street:         2465 GUADALCANAL ROAD
Street:         BLDG 1265
City:           VIRGINIA BEACH
State/Prov:     VA
Country:        US
PostalCode:     23459
RegDate:        2006-09-21
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:        2025-02-13
OfficePhone:    +1-844-347-2457
Mailbox:        disa.columbus.ns.mbx.arin-registrations@mail.mil
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 205.0.0.0/8

Range	ASN	Company	Num of IPs
205.240.0.0/13	AS13676	Sprint	524,288
205.240.0.0/13	AS174	Sprint	524,288
205.240.0.0/13	AS40508	Sprint	524,288
205.168.0.0/14	AS18453	CenturyLink Communications, LLC	262,144
205.180.0.0/14	AS27495	Level 3 Parent, LLC	262,144
205.180.0.0/14	AS3738	Level 3 Parent, LLC	262,144
205.228.0.0/14	AS7270	Verizon Business	262,144
205.168.0.0/14	AS209	CenturyLink Communications, LLC	262,144
205.168.0.0/14	AS23458	CenturyLink Communications, LLC	262,144
205.224.0.0/14	AS328867	Level 3 Parent, LLC	262,144
205.168.0.0/14	AS398895	CenturyLink Communications, LLC	262,144
205.168.0.0/14	AS401606	CenturyLink Communications, LLC	262,144
205.180.0.0/14	AS3356	Level 3 Parent, LLC	262,144
205.168.0.0/14	AS10753	CenturyLink Communications, LLC	262,144
205.128.0.0/14	AS3356	Level 3 Parent, LLC	262,144
205.168.0.0/14	AS10835	CenturyLink Communications, LLC	262,144
205.168.0.0/14	AS32932	CenturyLink Communications, LLC	262,144
205.160.0.0/14	AS174	Sprint	262,144
205.228.0.0/14	AS701	Verizon Business	262,144
205.180.0.0/14	AS26478	Level 3 Parent, LLC	262,144
205.224.0.0/14	AS3356	Level 3 Parent, LLC	262,144
205.168.0.0/14	AS3356	CenturyLink Communications, LLC	262,144
205.198.0.0/15	AS174	Cogent Communications, LLC	131,072
205.218.0.0/15	AS3561	CenturyLink Communications, LLC	131,072
205.200.0.0/16	AS7122	Bell Canada	65,536
205.177.0.0/16	AS63199	PCCW Global, Inc.	65,536
205.152.0.0/16	AS6389	AT&T Enterprises, LLC	65,536
205.155.0.0/16	AS257	CENIC	65,536
205.177.0.0/16	AS37146	PCCW Global, Inc.	65,536
205.152.0.0/16	AS2386	AT&T Enterprises, LLC	65,536
205.154.0.0/16	AS2153	CENIC	65,536
205.252.0.0/16	AS4760	PCCW Global, Inc.	65,536
205.252.0.0/16	AS30967	PCCW Global, Inc.	65,536
205.221.0.0/16	AS36634	Iowa Communications Network	65,536
205.177.0.0/16	AS20263	PCCW Global, Inc.	65,536
205.154.0.0/16	AS2152	CENIC	65,536
205.252.0.0/16	AS54994	PCCW Global, Inc.	65,536
205.155.0.0/16	AS2152	CENIC	65,536
205.213.0.0/16	AS2381	WiscNet	65,536
205.213.0.0/16	AS22066	WiscNet	65,536
205.213.0.0/16	AS395963	WiscNet	65,536
205.221.0.0/16	AS6122	Iowa Communications Network	65,536
205.232.0.0/16	AS7029	Windstream Communications LLC	65,536
205.252.0.0/16	AS395753	PCCW Global, Inc.	65,536
205.197.0.0/16	AS2828	Verizon Business	65,536
205.213.0.0/16	AS59	WiscNet	65,536
205.206.0.0/16	AS852	TELUS Communications Inc.	65,536
205.133.0.0/16	AS55194	OARnet	65,536
205.253.0.0/16	AS55836	Reliance Jio Infocomm Limited	65,536
205.213.0.0/16	AS397171	WiscNet	65,536

Hosted domains

There are 7 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
205.59.190.148	nwcaster.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

8 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
205.56.129.107	AS5371 United States Department of Defense (DoD)	`32.41ms` from Atlanta, US
205.56.162.34	AS721 United States Department of Defense (DoD)	`5.33ms` from Frankfurt am Main, DE
205.58.90.76	AS27064 United States Department of Defense (DoD)	`22.09ms` from Ashburn, US
205.56.181.107	AS647 United States Department of Defense (DoD)	`3.11ms` from Honolulu, US

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
103.44.165.237	AS133878 UNICOM NEW ZEALAND LIMITED	`1.42ms` from Auckland, NZ
67.214.82.141	AS11915 TPx Communications	`0.70ms` from Dallas, US
162.250.180.237	AS36394 Grid4 Communications, Inc	`1.10ms` from Detroit, US
217.231.135.61	AS3320 Deutsche Telekom AG	`1.69ms` from Duesseldorf, DE
163.227.64.45	AS152401 PT Airlink Media Data	`9.99ms` from Jakarta, ID
195.22.1.141	AS8426 ClaraNET LTD	`0.42ms` from Lisbon, PT
31.10.40.13	AS42004 VOIP-UN LIMITED	`0.64ms` from London, GB
92.24.127.61	AS13285 TalkTalk Communications Limited	`3.07ms` from Manchester, GB
101.178.19.221	AS1221 Telstra Limited	`2.63ms` from Melbourne, AU
119.239.185.141	AS2518 BIGLOBE Inc.	`12.29ms` from Osaka, JP
200.210.209.45	AS4230 CLARO S.A.	`0.29ms` from Porto Alegre, BR
200.137.69.13	AS1916 Rede Nacional de Ensino e Pesquisa	`7.68ms` from Rio de Janeiro, BR
222.73.90.189	AS4812 China Telecom (Group)	`2.12ms` from Shanghai, CN
27.129.1.77	AS4134 CHINANET-BACKBONE	`0.86ms` from Shijiazhuang, CN
83.12.171.173	AS5617 Orange Polska Spolka Akcyjna	`7.29ms` from Warsaw, PL
185.147.41.61	AS58224 Iran Telecommunication Company PJS	`11.11ms` from Yerevan, AM
212.162.10.125	AS3356 Level 3 Parent, LLC	`0.30ms` from Berlin, DE
156.222.135.61	AS8452 TE-AS	`4.09ms` from Cairo, EG
196.127.241.205	AS36925 MEDITELECOM	`4.50ms` from Casablanca, MA
79.228.144.173	AS3320 Deutsche Telekom AG	`5.81ms` from Frankfurt am Main, DE
183.166.194.141	AS4134 CHINANET-BACKBONE	`14.68ms` from Huai'an, CN
73.156.152.13	AS7922 Comcast Cable Communications, LLC	`7.09ms` from Miami, US
95.233.93.93	AS3269 Telecom Italia S.p.A.	`2.81ms` from Milan, IT
62.33.36.13	AS20485 Joint Stock Company TransTeleCom	`6.35ms` from Moscow, RU
113.158.35.253	AS2516 KDDI CORPORATION	`4.94ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f7 -m10 205.63.255.11

traceroute to 205.63.255.11 (205.63.255.11): 10 hops max, 52 byte packets

7 [AS3356] 64.159.215.38 25.655 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Piscataway, US

On November 14th 2025

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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