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:      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 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

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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
74.65.119.86	AS11351 Charter Communications Inc	`19.23ms` from Chicago, US
67.64.142.246	AS7018 AT&T Enterprises, LLC	`2.65ms` from Dallas, US
217.229.198.70	AS3320 Deutsche Telekom AG	`5.90ms` from Frankfurt am Main, DE
1.255.177.166	AS9318 SK Broadband Co Ltd	`6.25ms` from Incheon, KR
148.69.95.102	AS12353 Vodafone Portugal	`1.59ms` from Lisbon, PT
18.133.32.6	AS16509 Amazon.com, Inc.	`0.63ms` from London, GB
2.101.198.118	AS13285 TalkTalk Communications Limited	`5.57ms` from Manchester, GB
125.201.232.246	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.95ms` from Osaka, JP
73.96.219.86	AS7922 Comcast Cable Communications, LLC	`9.06ms` from Portland, US
13.216.135.230	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
50.79.102.118	AS7922 Comcast Cable Communications, LLC	`6.82ms` from Secaucus, US
119.109.125.246	AS4837 CHINA UNICOM China169 Backbone	`8.04ms` from Tieling, CN
189.41.209.70	AS53006 ALGAR TELECOM S/A	`4.37ms` from Uberlandia, BR
97.166.60.86	AS6167 Verizon Business	`16.23ms` from Atlanta, US
84.188.29.38	AS3320 Deutsche Telekom AG	`2.57ms` from Berlin, DE
77.188.226.118	AS6805 Telefonica Germany GmbH & Co.OHG	`3.83ms` from Berlin, DE
74.92.4.54	AS7922 Comcast Cable Communications, LLC	`7.67ms` from Boston, US
119.17.162.86	AS9268 Over The Wire Pty Ltd	`0.31ms` from Brisbane, AU
184.17.127.6	AS5650 Frontier Communications of America, Inc.	`7.79ms` from Chicago, US
116.129.90.134	AS4837 CHINA UNICOM China169 Backbone	`10.63ms` from Kunming, CN
185.91.22.6	AS42010 I.T. PROFESSIONAL SERVICES LIMITED	`6.83ms` from London, GB
217.198.9.70	AS9123 JSC TIMEWEB	`0.71ms` from Moscow, RU
59.63.155.182	AS4134 CHINANET-BACKBONE	`1.55ms` from Nanchang, CN
87.184.31.22	AS3320 Deutsche Telekom AG	`3.42ms` from Nuernberg, DE
98.98.18.70	AS21859 Zenlayer Inc	`0.35ms` from Osasco, BR

Traceroute

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

traceroute -a -n -q1 -f5 -m8 161.51.41.237

traceroute to 161.51.41.237 (161.51.41.237): 8 hops max, 52 byte packets

5 [AS749] 11.94.160.122 10.583 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Fuzhou, CN

On January 19th 2026

What are IP address ranges?

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