161.51.11.0/24

AS16525 · KBR

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

Summary

Country	United States
Domain	kbr.com
ASN	AS16525
Registry	ARIN
ID	KELLOGG-BROWN-ROOT-INC

WHOIS Details

NetHandle:      NET-161-51-0-0-1
OrgID:          KBR-3
Parent:         NET-161-0-0-0-0
NetName:        KELLOGG-BROWN-ROOT-INC
NetRange:       161.51.0.0 - 161.51.47.255
NetType:        allocation
RegDate:        1992-05-27
Updated:        2023-12-27
Source:         ARIN


OrgID:          KBR-3
OrgName:        KBR
CanAllocate:    
Street:         601 Jefferson Ave
City:           Houston
State/Prov:     TX
Country:        US
PostalCode:     77002
RegDate:        2004-11-15
Updated:        2020-02-13
OrgAdminHandle: ADMIN447-ARIN
OrgTechHandle:  HERRI169-ARIN
OrgTechHandle:  TECHN193-ARIN
OrgAbuseHandle: TECHN193-ARIN
Source:         ARIN


POCHandle:      ADMIN447-ARIN
IsRole:         Y
LastName:       Administrative POC
FirstName:      
Street:         601 Jefferson Ave
City:           Houston
State/Prov:     TX
Country:        US
PostalCode:     77002
RegDate:        2004-11-15
Updated:        2025-05-16
OfficePhone:    +1-713-753-4000
Mailbox:        kbrdnsadmin@kbr.com
Source:         ARIN


POCHandle:      HERRI169-ARIN
IsRole:         N
LastName:       Herrington
FirstName:      Mandy
Street:         601 Jefferson
City:           Houston
State/Prov:     TX
Country:        US
PostalCode:     77002
RegDate:        2020-01-22
Updated:        2023-08-28
OfficePhone:    +1-713-753-4946
Mailbox:        mandy.herrington@kbr.com
Source:         ARIN


POCHandle:      TECHN193-ARIN
IsRole:         Y
LastName:       Technical POC
FirstName:      
Street:         601 Jefferson Ave
City:           Houston
State/Prov:     TX
Country:        US
PostalCode:     77002
RegDate:        2004-11-15
Updated:        2025-08-05
OfficePhone:    +1-713-753-4357
Mailbox:        kbrdnsadmin@kbr.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 161.51.0.0/16

Range	ASN	Company	Num of IPs
161.51.192.0/19	AS201838	Community Fibre Limited	8,192
161.51.64.0/19	AS39686	Eurofiber Nederland BV	8,192
161.51.48.0/20	AS201838	Legaco Networks B.V.	4,096
161.51.224.0/20	AS201838	Community Fibre Limited	4,096
161.51.240.0/21	AS21263	TeleData GmbH	2,048
161.51.128.0/22	AS212795	Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.	1,024
161.51.96.0/23	AS201838	Legaco Networks B.V.	512
161.51.252.0/23	AS201838	Legaco Networks B.V.	512
161.51.255.0/24	AS205037	Kisters AG	256
161.51.101.0/24	AS12859	Laposta BV	256
161.51.99.0/24	AS14618	STI Group	256

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

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

IP Address	ASN	Details
161.51.11.10	AS16525 KBR	`2.08ms` from Erith, GB

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
81.0.87.184	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`1.21ms` from Budapest, HU
117.110.170.200	AS9316 DACOM-PUBNETPLUS	`2.08ms` from Incheon, KR
176.116.174.216	AS31257 Orion Telecom LLC	`0.57ms` from Krasnoyarsk, RU
88.37.66.216	AS3269 Telecom Italia S.p.A.	`2.03ms` from Milan, IT
177.55.215.200	AS262531 Connection Multimidia Telecomunicacoes LTDA	`14.58ms` from Osasco, BR
177.80.182.248	AS28573 Claro NXT Telecomunicacoes Ltda	`5.66ms` from Sao Paulo, BR
125.151.113.88	AS4766 Korea Telecom	`1.62ms` from Seoul, KR
118.165.7.232	AS3462 Data Communication Business Group	`1.03ms` from Taipei, TW
107.190.50.200	AS5645 TekSavvy Solutions, Inc.	`10.39ms` from Toronto, CA
82.218.71.216	AS8339 kabelplus GmbH	`0.97ms` from Vienna, AT
44.248.103.152	AS16509 Amazon.com, Inc.	`0.32ms` from Boardman, US
219.153.154.216	AS134420 Chongqing Telecom	`0.36ms` from Chongqing, CN
172.87.133.120	AS11427 Charter Communications Inc	`2.40ms` from Dallas, US
80.132.34.216	AS3320 Deutsche Telekom AG	`4.32ms` from Duesseldorf, DE
194.39.121.168	AS5539 SpaceNet AG	`5.73ms` from Frankfurt am Main, DE
181.199.114.8	AS27947 Telconet S.A	`2.40ms` from Guayaquil, EC
58.228.24.72	AS9318 SK Broadband Co Ltd	`5.08ms` from Incheon, KR
61.166.30.120	AS4134 CHINANET-BACKBONE	`3.97ms` from Kunming, CN
3.8.82.24	AS16509 Amazon.com, Inc.	`0.67ms` from London, GB
2.102.225.248	AS13285 TalkTalk Communications Limited	`7.01ms` from Manchester, GB
65.32.237.88	AS33363 Charter Communications, Inc	`11.36ms` from Miami, US
76.123.225.8	AS7922 Comcast Cable Communications, LLC	`12.67ms` from Murfreesboro, US
104.245.39.184	AS6364 Atlantic.net, Inc.	`0.80ms` from Orlando, US
34.236.215.72	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
3.91.162.56	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 161.51.11.10

traceroute to 161.51.11.10 (161.51.11.10): 64 hops max, 52 byte packets

1 [AS15169] 72.14.238.165 136.867 ms

2 [AS15169] 192.178.97.114 137.026 ms

3 [AS2856] 195.99.126.246 141.943 ms

4 [AS2856] 194.72.16.191 139.256 ms

5 [AS2856] 217.32.170.63 140.882 ms

6 [AS2856] 81.147.48.213 139.637 ms

7 [AS2856] 62.172.105.194 140.335 ms

8 [AS16525] 161.51.11.10 141.733 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On January 19th 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