161.51.40.0/22

AS2764 · AAPT Limited

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Summary

Country	United States
Domain	kbr.com
ASN	AS2764
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:      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:      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
161.51.252.0/23	AS201838	Legaco Networks B.V.	512
161.51.96.0/23	AS201838	Legaco Networks B.V.	512
161.51.101.0/24	AS12859	Laposta BV	256
161.51.255.0/24	AS205037	Kisters AG	256
161.51.99.0/24	AS14618	STI Group	256

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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

IP Address	ASN	Details
161.51.42.51	AS2764 AAPT Limited	`1.43ms` from Perth, AU
161.51.43.230	AS2764 AAPT Limited	`1.16ms` from Perth, AU

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
61.29.248.166	AS135391 AOFEI DATA INTERNATIONAL COMPANY LIMITED	`0.59ms` from Amsterdam, NL
54.174.161.230	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
44.244.140.246	AS16509 Amazon.com, Inc.	`0.54ms` from Boardman, US
223.149.79.118	AS4134 CHINANET-BACKBONE	`6.91ms` from Changsha, CN
107.222.208.22	AS7018 AT&T Enterprises, LLC	`7.04ms` from Chicago, US
87.60.212.150	AS3292 TDC Holding A/S	`2.31ms` from Copenhagen, DK
103.24.149.118	AS23949 PT Comtronics Systems	`1.04ms` from Jakarta, ID
189.171.132.102	AS8151 UNINET	`1.54ms` from Mexico City, MX
195.14.155.70	AS6866 Cyprus Telecommunications Authority	`0.68ms` from Nicosia, CY
36.140.115.118	AS9808 China Mobile Communications Group Co., Ltd.	`1.62ms` from Qingdao, CN
212.232.79.6	AS39102 Global Network Management Inc	`1.17ms` from Saint Petersburg, RU
162.231.103.198	AS7018 AT&T Enterprises, LLC	`3.57ms` from San Jose, US
182.208.232.182	AS17858 LG POWERCOMM	`1.88ms` from Seoul, KR
117.149.137.166	AS56041 China Mobile communications corporation	`11.42ms` from Suzhou, CN
36.54.22.22	AS10013 FreeBit Co.,Ltd.	`2.34ms` from Tokyo, JP
83.64.4.118	AS8412 T-Mobile Austria GmbH	`1.07ms` from Vienna, AT
89.217.198.150	AS6730 Sunrise GmbH	`2.20ms` from Zuerich, CH
205.134.169.6	AS6405 American Information Network	`1.77ms` from Ashburn, US
195.38.183.38	AS8511 ASIAINFO TE	`0.46ms` from Bishkek, KG
91.82.131.230	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`4.80ms` from Budapest, HU
116.107.58.118	AS7552 Viettel Group	`3.35ms` from Hanoi, VN
36.83.19.246	AS7713 PT Telekomunikasi Indonesia	`18.51ms` from Jakarta, ID
89.115.21.134	AS12353 Vodafone Portugal	`2.75ms` from Lisbon, PT
80.45.31.38	AS13285 TalkTalk Communications Limited	`5.36ms` from London, GB
82.1.66.230	AS5089 Virgin Media Limited	`3.38ms` 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 161.51.43.230

traceroute to 161.51.43.230 (161.51.43.230): 64 hops max, 52 byte packets

3 [] 15.230.139.226 271.405 ms

4 [] 15.230.139.22 0.181 ms

5 *

6 *

7 [AS16509] 99.83.91.148 3.92 ms

8 *

9 [AS7545] 203.219.57.131 0.946 ms

10 [AS7545] 220.244.229.42 1.203 ms

11 [] 203.131.57.172 1.878 ms

12 [] 202.10.17.238 1.356 ms

13 [] 202.10.17.242 1.233 ms

14 [AS7545] 14.203.189.86 2.258 ms

15 [AS2764] 161.51.43.230 1.389 ms

Measurement taken from

IPinfo ProbeNet in Perth, AU

On March 20th 2026

What are IP address ranges?

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