168.137.72.0/21

AS8075 · Microsoft Corporation

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Summary

Country	United States
Domain	hrblock.com
ASN	AS8075
Registry	ARIN
ID	A4-INHB-CUSTOM-PREFIX

WHOIS Details

NetHandle:      NET-168-137-72-0-1
OrgID:          C10981955
Parent:         NET-168-137-0-0-1
NetName:        A4-INHB-CUSTOM-PREFIX
NetRange:       168.137.72.0 - 168.137.79.255
NetType:        reassignment
Comment:        Comment:-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
RegDate:        2024-10-09
Updated:        2024-10-09
Source:         ARIN


OrgID:          C10981955
OrgName:        H&R Block
CanAllocate:    
Street:         One H&R Block Way
City:           Kansas City
State/Prov:     MO
Country:        US
PostalCode:     64105
RegDate:        2024-10-09
Updated:        2024-10-09
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 168.137.0.0/16

Range	ASN	Company	Num of IPs
168.137.64.0/21	AS8075	H&R Block	2,048

Hosted domains

There are no domains currently hosted on this ASN.

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
77.161.86.229	AS1136 KPN B.V.	`1.02ms` from Amsterdam, NL
101.98.30.149	AS9790 Two Degrees Networks Limited	`1.59ms` from Auckland, NZ
111.8.171.133	AS56047 China Mobile communications corporation	`4.24ms` from Changsha, CN
3.20.143.197	AS16509 Amazon.com, Inc.	`0.13ms` from Columbus, US
85.134.249.245	AS25441 Imagine Communications Group Limited	`14.89ms` from Dublin, IE
189.178.38.213	AS8151 UNINET	`0.90ms` from Guadalajara, MX
223.4.147.229	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.49ms` from Hangzhou, CN
104.174.255.165	AS20001 Charter Communications Inc	`8.05ms` from Los Angeles, US
83.61.205.69	AS3352 TELEFONICA DE ESPANA S.A.U.	`6.76ms` from Madrid, ES
52.244.129.133	AS8075 Microsoft Corporation	`19.07ms` from San Antonio, US
23.216.224.85	AS16625 Akamai Technologies, Inc.	`0.08ms` from Santiago de Queretaro, MX
201.152.106.149	AS8151 UNINET	`19.49ms` from Santiago de Queretaro, MX
120.159.50.229	AS135887 Belong (Telstra Limited)	`7.30ms` from Sydney, AU
196.178.114.245	AS37693 OOREDOO TUNISIE SA	`14.60ms` from Tunis, TN
64.191.156.37	AS35985 One Ring Networks, Inc.	`16.63ms` from Atlanta, US
97.140.55.101	AS6167 Verizon Business	`15.44ms` from Atlanta, US
14.143.181.165	AS4755 TATA Communications formerly VSNL is Leading ISP	`1.64ms` from Delhi, IN
20.200.147.21	AS8075 Microsoft Corporation	`0.25ms` from Dongnae, KR
59.41.103.85	AS4134 CHINANET-BACKBONE	`2.08ms` from Guangzhou, CN
183.130.191.69	AS4134 CHINANET-BACKBONE	`9.92ms` from Hangzhou, CN
88.234.34.37	AS9121 Turk Telekomunikasyon Anonim Sirketi	`11.56ms` from Istanbul, TR
185.38.132.53	AS200008 Pirum Systems Limited	`0.41ms` from London, GB
172.232.209.165	AS63949 Akamai Connected Cloud	`0.25ms` from Milan, IT
103.76.254.165	AS135619 Prakash Kumar Khetan T/A WIRE AND WIRELESS SOLUTIONS	`11.28ms` from Mumbai, IN
60.151.40.37	AS17676 SoftBank Corp.	`3.44ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f3 -m8 168.137.76.223

traceroute to 168.137.76.223 (168.137.76.223): 8 hops max, 52 byte packets

3 [AS3170] 45.87.28.94 4.265 ms

4 [] 195.66.224.140 4.513 ms

5 [AS8075] 51.10.41.237 4.779 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Wolverhampton, GB

On October 30th 2025

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.

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