131.40.0.0/16

AS56 · United States Department of Defense (DoD)

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United States
Domain	mail.mil
ASN	AS56
Registry	ARIN
ID	BUCKNET

WHOIS Details

NetHandle:      NET-131-40-0-0-2
OrgID:          7ESG
Parent:         NET-131-40-0-0-1
NetName:        BUCKNET
NetRange:       131.40.0.0 - 131.40.255.255
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
131.213.0.0/16	AS2527	Sony Network Communications Inc.	65,536
131.123.0.0/16	AS11050	Kent State University	65,536
131.194.0.0/16	AS19342	Trinity University	65,536
131.236.0.0/16	AS23859	University of New South Wales	65,536
131.171.0.0/16	AS22877	University of Maryland Global Campus	65,536
131.127.0.0/16	AS16509	Amazon.com, Inc.	65,536
131.243.0.0/16	AS16	Lawrence Berkeley National Laboratory	65,536
131.115.0.0/16	AS1729	Telia Company AB	65,536
131.177.0.0/16	AS1759	Telia Finland Oyj	65,536
131.128.0.0/16	AS14348	University of Rhode Island	65,536
131.183.0.0/16	AS2025	University of Toledo	65,536
131.175.0.0/16	AS198949	CINECA Consorzio Interuniversitario	65,536
131.93.0.0/16	AS20115	Charter Communications LLC	65,536
131.254.0.0/16	AS1938	Institut National de Recherche en Informatique et Automatique de Rennes	65,536
131.109.0.0/16	AS14464	Rhode Island Network for Educ. Technology	65,536
131.230.0.0/16	AS15119	Southern Illinois University Carbondale	65,536
131.160.0.0/16	AS158	Oy L M Ericsson Ab	65,536
131.68.0.0/16	AS138	DoD Network Information Center	65,536
131.168.0.0/16	AS16509	Amazon.com, Inc.	65,536
131.116.0.0/16	AS1729	Telia Company AB	65,536
131.169.0.0/16	AS1754	Deutsches Elektronen-Synchrotron DESY	65,536
131.211.0.0/16	AS1103	Heidelberglaan 8	65,536
131.96.0.0/16	AS10631	Georgia State University	65,536
131.156.0.0/16	AS11417	Northern Illinois University	65,536
131.197.0.0/16	AS19773	Motorola - Network Computing Services	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
131.246.0.0/16	AS199578	Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-Landau	65,536
131.147.0.0/16	AS2527	Sony Network Communications Inc.	65,536
131.203.0.0/16	AS132264	Two Degrees Mobile Limited	65,536
131.190.0.0/16	AS11003	The Procter and Gamble Company	65,536
131.167.0.0/16	AS13335	BATTELLE MEMORIAL INSTITUTE	65,536
131.180.0.0/16	AS1128	P.O. Box 354	65,536
131.230.0.0/16	AS15118	Southern Illinois University Carbondale	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
131.174.0.0/16	AS1103	Radboud Universiteit Nijmegen	65,536
131.91.0.0/16	AS12013	Florida Atlantic University	65,536
131.67.0.0/16	AS138	DoD Network Information Center	65,536
131.151.0.0/16	AS11348	Missouri University of Science and Technology	65,536
131.172.0.0/16	AS135893	LATROBE UNIVERSITY	65,536
131.142.0.0/16	AS1742	Smithsonian Astrophysical Observatory	65,536
131.114.0.0/16	AS137	UNI-Pisa	65,536
131.154.0.0/16	AS137	INFN - CNAF - Bologna	65,536
131.175.0.0/16	AS137	CINECA Consorzio Interuniversitario	65,536
131.66.0.0/16	AS138	DoD Network Information Center	65,536
131.103.0.0/16	AS2914	NTT America, Inc.	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

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
79.120.165.128	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`5.65ms` from Budapest, HU
203.55.224.80	AS139220 Sichuan Chuanxn IDC	`3.46ms` from Chengdu, CN
98.144.9.96	AS10796 Charter Communications Inc	`6.49ms` from Chicago, US
135.224.88.0	AS8075 Microsoft Corporation	`0.58ms` from Chicago, US
24.243.227.208	AS11427 Charter Communications Inc	`7.24ms` from Dallas, US
58.23.42.144	AS4837 CHINA UNICOM China169 Backbone	`6.30ms` from Fuzhou, CN
14.187.1.240	AS45899 VNPT Corp	`1.52ms` from Ho Chi Minh City, VN
86.185.203.48	AS2856 British Telecommunications PLC	`5.12ms` from London, GB
52.45.48.112	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
93.45.25.144	AS12874 Fastweb SpA	`1.26ms` from Rome, IT
5.19.138.160	AS41733 JSC "ER-Telecom Holding"	`2.14ms` from Saint Petersburg, RU
13.112.89.128	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
54.199.99.80	AS16509 Amazon.com, Inc.	`0.18ms` from Tokyo, JP
134.185.178.80	AS54253 Oracle Corporation	`1.76ms` from Bangkok, TH
73.36.2.176	AS7922 Comcast Cable Communications, LLC	`4.41ms` from Chicago, US
72.109.210.16	AS6167 Verizon Business	`8.61ms` from Dallas, US
198.72.153.224	AS20001 Charter Communications Inc	`5.20ms` from Los Angeles, US
71.230.238.208	AS7922 Comcast Cable Communications, LLC	`9.38ms` from Morris Plains, US
112.68.125.112	AS17511 OPTAGE Inc.	`2.20ms` from Osaka, JP
221.155.210.176	AS4766 Korea Telecom	`1.40ms` from Seoul, KR
202.218.47.240	AS4694 IDC Frontier Inc.	`0.62ms` from Tokyo, JP
46.190.11.160	AS25472 Nova Telecommunications & Media Single Member S.A	`8.52ms` from Athens, GR
180.71.253.48	AS9318 SK Broadband Co Ltd	`1.42ms` from Incheon, KR
128.242.13.64	AS400427 IQ Fiber	`3.39ms` from Jacksonville, US
111.17.201.208	AS24444 Shandong Mobile Communication Company Limited	`2.19ms` from Jinan, CN

Traceroute

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

traceroute -a -n -q1 -f4 -m9 131.40.47.216

traceroute to 131.40.47.216 (131.40.47.216): 9 hops max, 52 byte packets

4 [AS3257] 212.221.9.181 0.777 ms

5 *

6 [AS3356] 4.68.39.217 0.741 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On January 30th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales