137.3.120.0/24

AS56 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS56
Parent Range	137.3.0.0/16
Registry	ARIN
ID	LITTLEROCK1-NET

WHOIS Details

NetHandle:      NET-137-3-0-0-2
OrgID:          7ESG
Parent:         NET-137-3-0-0-1
NetName:        LITTLEROCK1-NET
NetRange:       137.3.0.0 - 137.3.255.255
NetType:        reallocation
RegDate:        2025-08-19
Updated:        2025-08-19
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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 137.3.120.0/24

Range	ASN	Company	Num of IPs
137.3.0.0/16	AS56	Air Force Systems Networking	65,536

Nearby Ranges

BGP prefixes that overlap with 137.3.0.0/16

Range	ASN	Company	Num of IPs
137.3.0.0/16	AS56	Air Force Systems Networking	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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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
2.86.255.136	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`4.82ms` from Athens, GR
84.171.246.168	AS3320 Deutsche Telekom AG	`9.22ms` from Frankfurt am Main, DE
183.178.195.88	AS9269 Hong Kong Broadband Network Ltd.	`1.25ms` from Hong Kong, HK
115.95.196.8	AS3786 LG DACOM Corporation	`0.99ms` from Incheon, KR
58.229.154.248	AS9318 SK Broadband Co Ltd	`1.62ms` from Incheon, KR
175.114.203.72	AS9318 SK Broadband Co Ltd	`1.74ms` from Incheon, KR
211.37.33.88	AS9318 SK Broadband Co Ltd	`2.67ms` from Incheon, KR
96.62.38.248	AS174 Cogent Communications, LLC	`0.27ms` from Los Angeles, US
64.47.132.136	AS19855 Masergy Communications, Inc.	`0.50ms` from Los Angeles, US
130.79.80.40	AS2259 Renater	`12.69ms` from Marseille, FR
119.245.3.152	AS2514 NTT PC Communications, Inc.	`8.46ms` from Osaka, JP
177.182.4.136	AS28573 Claro NXT Telecomunicacoes Ltda	`12.32ms` from Rio de Janeiro, BR
118.47.211.248	AS4766 Korea Telecom	`2.47ms` from Seoul, KR
52.69.73.40	AS16509 Amazon.com, Inc.	`0.23ms` from Tokyo, JP
125.41.105.88	AS4837 CHINA UNICOM China169 Backbone	`5.89ms` from Zhengzhou, CN
222.237.124.216	AS9318 SK Broadband Co Ltd	`1.13ms` from Incheon, KR
136.230.44.24	AS245 Planning Research Corporation	`0.06ms` from Manassas, US
2.116.231.200	AS3269 Telecom Italia S.p.A.	`3.83ms` from Milan, IT
95.236.171.152	AS3269 Telecom Italia S.p.A.	`1.42ms` from Milan, IT
95.71.67.216	AS12389 PJSC Rostelecom	`17.53ms` from Moscow, RU
3.6.4.56	AS16509 Amazon.com, Inc.	`0.15ms` from Mumbai, IN
119.186.146.168	AS4837 CHINA UNICOM China169 Backbone	`4.93ms` from Qingdao, CN
195.250.253.56	AS5394 Unidata	`1.79ms` from Rome, IT
113.25.203.168	AS4134 CHINANET-BACKBONE	`4.42ms` from Taiyuan, CN
193.40.46.40	AS3221 EENet	`2.23ms` from Tallinn, EE

Traceroute

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

traceroute -a -n -q1 -f3 -m7 137.3.120.121

traceroute to 137.3.120.121 (137.3.120.121): 7 hops max, 52 byte packets

3 [AS24971] 83.167.254.190 56.583 ms

4 [AS9002] 87.245.246.86 0.544 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Brno, CZ

On January 9th 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.

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