161.51.8.0/24

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:      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


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

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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
161.51.8.74	r-s.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

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

IP Address	ASN	Details
161.51.8.123	AS16525 KBR	`2.36ms` from London, 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
85.74.207.168	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`6.27ms` from Athens, GR
100.10.36.8	AS701 Verizon Business	`2.79ms` from Boston, US
122.173.109.200	AS24560 Bharti Airtel Ltd., Telemedia Services	`11.72ms` from Chennai, IN
80.155.198.136	AS3320 Deutsche Telekom AG	`0.85ms` from Hamburg, DE
82.29.15.88	AS215523 Yayzi Broadband Limited	`1.93ms` from London, GB
92.30.141.136	AS13285 TalkTalk Communications Limited	`6.64ms` from Manchester, GB
189.153.138.24	AS8151 UNINET	`1.91ms` from Monterrey, MX
74.71.152.232	AS12271 Charter Communications Inc	`6.88ms` from New York City, US
125.11.51.232	AS9824 JCOM Co., Ltd.	`11.14ms` from Osaka, JP
96.16.58.24	AS16625 Akamai Technologies, Inc.	`0.41ms` from Paris, FR
86.246.209.248	AS3215 Orange S.A.	`2.86ms` from Paris, FR
14.64.120.136	AS4766 Korea Telecom	`1.58ms` from Seoul, KR
190.137.26.56	AS7303 Telecom Argentina S.A.	`16.76ms` from Buenos Aires, AR
169.63.226.56	AS36351 IBM Cloud	`0.78ms` from Dallas, US
84.165.64.216	AS3320 Deutsche Telekom AG	`2.95ms` from Duesseldorf, DE
46.21.109.88	AS42708 Glesys AB	`0.13ms` from Falkenberg, SE
191.242.188.88	AS263151 CONECT TELECOM	`19.85ms` from Fortaleza, BR
47.86.238.8	AS45102 Alibaba (US) Technology Co., Ltd.	`0.75ms` from Hong Kong, HK
70.30.253.216	AS577 Bell Canada	`1.70ms` from Montreal, CA
173.62.56.248	AS701 Verizon Business	`2.91ms` from New York City, US
35.140.111.168	AS33363 Charter Communications, Inc	`9.81ms` from Orlando, US
201.148.220.120	AS61779 Prefeitura do Municipio de Piracicaba	`6.24ms` from Sao Paulo, BR
61.81.146.216	AS4766 Korea Telecom	`4.32ms` from Seoul, KR
68.218.111.232	AS8075 Microsoft Corporation	`0.67ms` from Sydney, AU
163.16.44.136	AS1659 Taiwan Academic Network (TANet) Information Center	`7.65ms` from Taipei, TW

Traceroute

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

traceroute -a -n -q1 -f6 161.51.8.146

traceroute to 161.51.8.146 (161.51.8.146): 64 hops max, 52 byte packets

6 [AS16276] 213.186.32.252 0.636 ms

7 *

8 *

9 [AS2856] 194.72.16.157 1.096 ms

10 [AS2856] 217.32.170.105 2.284 ms

11 [AS2856] 81.147.48.213 1.965 ms

12 [AS2856] 62.172.105.194 2.569 ms

13 [AS16525] 161.51.11.253 2.235 ms

14 [AS16525] 161.51.8.146 2.336 ms

Measurement taken from

IPinfo ProbeNet in Erith, GB

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