131.56.0.0/16

AS56 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS56
Registry	ARIN
ID	CROUGHTON-NET

WHOIS Details

NetHandle:      NET-131-56-0-0-2
OrgID:          7ESG
Parent:         NET-131-56-0-0-1
NetName:        CROUGHTON-NET
NetRange:       131.56.0.0 - 131.56.255.255
NetType:        reallocation
RegDate:        2025-08-18
Updated:        2025-08-18
Source:         ARIN


OrgID:          7ESG
OrgName:        Air Force Systems Networking
CanAllocate:    
Street:         501 EAST MOORE DR. BLDG 884 RM 1100 GUNTHER ANNEX
City:           MAXWELL AFB
State/Prov:     AL
Country:        US
PostalCode:     36114
RegDate:        2008-06-05
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 131.0.0.0/8

Range	ASN	Company	Num of IPs
131.244.0.0/15	AS24014	Bond University Limited	131,072
131.159.0.0/16	AS209335	Technical University of Munich	65,536
131.123.0.0/16	AS11050	Kent State University	65,536
131.177.0.0/16	AS1759	Telia Finland Oyj	65,536
131.96.0.0/16	AS10631	Georgia State University	65,536
131.187.0.0/16	AS22320	OARnet	65,536
131.109.0.0/16	AS14464	Rhode Island Network for Educ. Technology	65,536
131.246.0.0/16	AS199578	Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-Landau	65,536
131.115.0.0/16	AS1729	Telia Company AB	65,536
131.169.0.0/16	AS1754	Deutsches Elektronen-Synchrotron DESY	65,536
131.91.0.0/16	AS12013	Florida Atlantic University	65,536
131.1.0.0/16	AS20746	OLIVETTI S.p.A.	65,536
131.93.0.0/16	AS20115	Charter Communications LLC	65,536
131.175.0.0/16	AS198949	CINECA Consorzio Interuniversitario	65,536
131.194.0.0/16	AS19342	Trinity University	65,536
131.243.0.0/16	AS16	Lawrence Berkeley National Laboratory	65,536
131.160.0.0/16	AS158	Oy L M Ericsson Ab	65,536
131.230.0.0/16	AS15119	Southern Illinois University Carbondale	65,536
131.127.0.0/16	AS16509	Amazon.com, Inc.	65,536
131.168.0.0/16	AS16509	Amazon.com, Inc.	65,536
131.116.0.0/16	AS1729	Telia Company AB	65,536
131.142.0.0/16	AS1742	Smithsonian Astrophysical Observatory	65,536
131.175.0.0/16	AS137	CINECA Consorzio Interuniversitario	65,536
131.211.0.0/16	AS1103	Heidelberglaan 8	65,536
131.156.0.0/16	AS11417	Northern Illinois University	65,536
131.254.0.0/16	AS1938	Institut National de Recherche en Informatique et Automatique de Rennes	65,536
131.239.0.0/16	AS11426	Crown Castle Fiber LLC	65,536
131.224.0.0/16	AS1103	Rijksinstituut voor Volksgezondheid en Milieuhygiene	65,536
131.155.0.0/16	AS1161	P.O. Box 513	65,536
131.197.0.0/16	AS19773	Motorola - Network Computing Services	65,536
131.171.0.0/16	AS22877	University of Maryland Global Campus	65,536
131.68.0.0/16	AS138	DoD Network Information Center	65,536
131.190.0.0/16	AS11003	The Procter and Gamble Company	65,536
131.128.0.0/16	AS14348	University of Rhode Island	65,536
131.203.0.0/16	AS132264	Two Degrees Mobile Limited	65,536
131.180.0.0/16	AS1128	P.O. Box 354	65,536
131.167.0.0/16	AS13335	BATTELLE MEMORIAL INSTITUTE	65,536
131.230.0.0/16	AS15118	Southern Illinois University Carbondale	65,536
131.174.0.0/16	AS1103	Radboud Universiteit Nijmegen	65,536
131.198.0.0/16	AS1341	Rockwell Collins, Inc.	65,536
131.199.0.0/16	AS1341	Rockwell Collins, Inc.	65,536
131.203.0.0/16	AS134359	Two Degrees Mobile Limited	65,536
131.172.0.0/16	AS135893	LATROBE UNIVERSITY	65,536
131.151.0.0/16	AS11348	Missouri University of Science and Technology	65,536
131.114.0.0/16	AS137	UNI-Pisa	65,536
131.154.0.0/16	AS137	INFN - CNAF - Bologna	65,536
131.236.0.0/16	AS23859	University of New South Wales	65,536
131.66.0.0/16	AS138	DoD Network Information Center	65,536
131.67.0.0/16	AS138	DoD Network Information Center	65,536
131.187.0.0/16	AS26898	OARnet	65,536

Hosted domains

There are no domains currently hosted on this ASN.

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

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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
100.6.41.16	AS701 Verizon Business	`6.01ms` from Ashburn, US
148.113.163.64	AS16276 OVH SAS	`0.07ms` from Beauharnois, CA
20.252.218.128	AS8075 Microsoft Corporation	`0.24ms` from Boydton, US
188.25.1.64	AS8708 DIGI ROMANIA S.A.	`1.85ms` from Bucharest, RO
75.17.234.112	AS7018 AT&T Enterprises, LLC	`18.06ms` from Dallas, US
80.153.160.80	AS3320 Deutsche Telekom AG	`9.88ms` from Frankfurt am Main, DE
77.6.181.144	AS6805 Telefonica Germany GmbH & Co.OHG	`6.80ms` from Hamburg, DE
125.125.83.80	AS4134 CHINANET-BACKBONE	`6.38ms` from Hangzhou, CN
27.78.33.240	AS7552 Viettel Group	`1.05ms` from Ho Chi Minh City, VN
122.175.24.32	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.78ms` from Hyderabad, IN
86.156.43.128	AS2856 British Telecommunications PLC	`2.22ms` from London, GB
115.39.76.128	AS18126 Chubu Telecommunications Company, Inc.	`4.17ms` from Osaka, JP
220.71.96.176	AS4766 Korea Telecom	`5.14ms` from Seoul, KR
180.92.106.0	AS9770 LG HelloVision Corp.	`4.86ms` from Seoul, KR
126.6.128.128	AS17676 SoftBank Corp.	`14.84ms` from Tokyo, JP
51.96.101.0	AS16509 Amazon.com, Inc.	`0.64ms` from Zuerich, CH
75.130.17.96	AS20115 Charter Communications LLC	`13.00ms` from Atlanta, US
111.203.197.112	AS4808 China Unicom Beijing Province Network	`2.96ms` from Beijing, CN
156.218.206.48	AS8452 TE-AS	`7.49ms` from Cairo, EG
73.168.33.64	AS7922 Comcast Cable Communications, LLC	`6.49ms` from Chicago, US
3.138.194.48	AS16509 Amazon.com, Inc.	`0.97ms` from Columbus, US
91.100.97.240	AS15516 DKTV A/S	`1.77ms` from Copenhagen, DK
223.179.137.144	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.55ms` from Delhi, IN
109.152.28.144	AS2856 British Telecommunications PLC	`7.14ms` from Erith, GB
20.77.135.176	AS8075 Microsoft Corporation	`0.22ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f3 -m9 131.56.106.26

traceroute to 131.56.106.26 (131.56.106.26): 9 hops max, 52 byte packets

3 [AS9002] 87.245.232.253 45.058 ms

4 *

5 *

6 [AS3356] 62.67.110.190 44.048 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Madrid, ES

On November 28th 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.

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