161.51.42.0/23

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:        [email protected]
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:        [email protected]
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:        [email protected]
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 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
161.51.42.141	sigmabravo.com.au	1
161.51.42.15	catalystinteractive.com	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
161.51.43.230	AS2764 AAPT Limited	`1.17ms` 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
181.93.132.151	AS7303 Telecom Argentina S.A.	`11.52ms` from Asuncion, PY
34.79.242.247	AS396982 Google LLC	`0.16ms` from Brussels, BE
83.169.40.135	AS20773 Host Europe GmbH	`3.13ms` from Frankfurt am Main, DE
183.15.122.87	AS4134 CHINANET-BACKBONE	`2.61ms` from Guangzhou, CN
115.231.24.87	AS58461 CT-HangZhou-IDC	`6.72ms` from Hangzhou, CN
210.211.122.199	AS38731 Vietel - CHT Compamy Ltd	`0.65ms` from Ho Chi Minh City, VN
176.45.217.199	AS25019 Saudi Telecom Company JSC	`4.94ms` from Jeddah, SA
5.67.226.39	AS5607 Sky UK Limited	`5.56ms` from London, GB
188.125.102.167	AS21309 HERABIT S.p.A.	`8.90ms` from Milan, IT
188.127.98.119	AS42560 Telemach BH d.o.o. Sarajevo	`4.77ms` from Novi Travnik, BA
90.105.16.71	AS3215 Orange S.A.	`13.40ms` from Paris, FR
202.209.79.7	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`17.31ms` from Tokyo, JP
78.132.44.23	AS8412 T-Mobile Austria GmbH	`7.38ms` from Vienna, AT
195.241.14.7	AS1136 KPN B.V.	`6.24ms` from Amsterdam, NL
52.80.221.199	AS55960 Beijing Guanghuan Xinwang Digital	`3.52ms` from Beijing, CN
81.247.128.231	AS5432 Proximus NV	`1.66ms` from Brussels, BE
75.242.210.215	AS6167 Verizon Business	`15.82ms` from Chicago, US
13.89.32.183	AS8075 Microsoft Corporation	`0.18ms` from Des Moines, US
114.55.186.167	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`6.54ms` from Hangzhou, CN
111.1.149.231	AS56041 China Mobile communications corporation	`5.61ms` from Hangzhou, CN
82.210.2.103	AS34177 CELESTE SAS	`0.49ms` from Paris, FR
185.2.229.231	AS1257 Tele2 Sverige AB	`11.05ms` from Vilnius, LT
185.253.231.183	AS201953 Tomasz Gawin trading as Interka Gawin Respondek sp.j.	`8.36ms` from Warsaw, PL
38.135.247.87	AS174 Cogent Communications, LLC	`1.52ms` from Chicago, US
14.243.111.199	AS45899 VNPT Corp	`2.89ms` from Da Nang, VN

Traceroute

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

traceroute -a -n -q1 -f2 -m6 161.51.42.68

traceroute to 161.51.42.68 (161.51.42.68): 6 hops max, 52 byte packets

2 [] 193.27.15.64 1.731 ms

3 [AS3491] 63.218.229.13 5.584 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On January 19th 2026

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