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:        [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

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

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
52.211.238.118	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
199.126.42.102	AS852 TELUS Communications Inc.	`1.00ms` from Edmonton, CA
73.78.61.182	AS7922 Comcast Cable Communications, LLC	`5.04ms` from Greenwood Village, US
89.241.70.54	AS13285 TalkTalk Communications Limited	`5.67ms` from London, GB
185.91.22.6	AS42010 I.T. PROFESSIONAL SERVICES LIMITED	`6.83ms` from London, GB
90.205.39.70	AS5607 Sky UK Limited	`7.29ms` from London, GB
131.108.43.182	AS52438 PLANISYS S.A.	`0.17ms` from Miami, US
162.239.126.22	AS7018 AT&T Enterprises, LLC	`10.72ms` from Miami, US
134.157.149.134	AS1307 Renater	`1.87ms` from Paris, FR
3.228.2.6	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
50.79.102.118	AS7922 Comcast Cable Communications, LLC	`6.82ms` from Secaucus, US
94.231.106.118	AS48854 team.blue Denmark A/S	`0.29ms` from Skanderborg, DK
111.250.36.182	AS3462 Data Communication Business Group	`0.98ms` from Taipei, TW
180.11.213.70	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.77ms` from Tokyo, JP
41.98.179.166	AS36947 Telecom Algeria	`10.07ms` from Valencia, ES
178.183.104.214	AS12912 T-Mobile Polska S.A.	`13.73ms` from Warsaw, PL
171.81.203.54	AS4134 CHINANET-BACKBONE	`2.12ms` from Wuhan, CN
5.140.247.22	AS12389 PJSC Rostelecom	`0.75ms` from Yekaterinburg, RU
61.53.237.118	AS4837 CHINA UNICOM China169 Backbone	`4.77ms` from Zhengzhou, CN
74.92.4.54	AS7922 Comcast Cable Communications, LLC	`7.67ms` from Boston, US
102.161.27.134	AS30999 EMTEL LIMITED	`15.59ms` from Ebene, MU
62.214.8.230	AS8881 1&1 Versatel GmbH	`0.53ms` from Hamburg, DE
14.242.14.54	AS45899 VNPT Corp	`3.16ms` from Ho Chi Minh City, VN
95.144.162.198	AS2856 British Telecommunications PLC	`4.88ms` from London, GB
47.44.162.166	AS20115 Charter Communications LLC	`1.13ms` from Los Angeles, US

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

What are IP address ranges?

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