147.72.252.0/22

AS36407 · Software Engineering Institute

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Summary

Country	United States
Domain	cmu.edu
ASN	AS36407
Registry	ARIN
ID	PSC-BLK72-252-22

WHOIS Details

NetHandle:      NET-147-72-252-0-1
OrgID:          CERT-1
Parent:         NET-147-72-0-0-1
NetName:        PSC-BLK72-252-22
NetRange:       147.72.252.0 - 147.72.255.255
NetType:        reassignment
OriginAS:       36407
RegDate:        2015-06-24
Updated:        2015-06-24
Source:         ARIN


OrgID:          CERT-1
OrgName:        Software Engineering Institute
CanAllocate:    
Street:         Software Engineering Institute
Street:         Carnegie Mellon University
Street:         4500 Fifth Avenue
City:           Pittsburgh
State/Prov:     PA
Country:        US
PostalCode:     15213
RegDate:        1991-01-11
Updated:        2014-08-13
OrgAdminHandle: SIT6-ARIN
OrgTechHandle:  SIT6-ARIN
OrgAbuseHandle: SIT6-ARIN
OrgNOCHandle:   SIT6-ARIN
Source:         ARIN


POCHandle:      SIT6-ARIN
IsRole:         Y
LastName:       SEI Information Technology
FirstName:      
Street:         4500 5th Ave
City:           Pittsburgh
State/Prov:     PA
Country:        US
PostalCode:     15213
RegDate:        2014-08-13
Updated:        2023-12-14
OfficePhone:    +1-412-268-3416
Mailbox:        it-netreg@sei.cmu.edu
Source:         ARIN

Hosted domains

There are 5 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
147.72.252.240	cert.org	3
147.72.252.209	lordballston.com	1
147.72.252.225	aadl.info	1
147.72.252.241	flocon.online	1
147.72.252.215	flocon.org	1
147.72.252.242	cert.org	1

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

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

IP Address	ASN	Details
147.72.253.71	AS36407 Software Engineering Institute	`0.82ms` from Pittsburgh, US
147.72.252.225	AS36407 Software Engineering Institute	`0.50ms` from Pittsburgh, US

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
4.246.129.134	AS8075 Microsoft Corporation	`1.05ms` from Ashburn, US
120.10.88.70	AS4837 CHINA UNICOM China169 Backbone	`6.93ms` from Beijing, CN
70.22.144.102	AS701 Verizon Business	`1.22ms` from Boston, US
52.179.225.102	AS8075 Microsoft Corporation	`0.31ms` from Boydton, US
50.66.147.70	AS6327 Shaw Communications Inc.	`4.11ms` from Calgary, CA
162.203.43.70	AS7018 AT&T Enterprises, LLC	`2.63ms` from Dallas, US
213.74.145.86	AS34984 Superonline Iletisim Hizmetleri A.S.	`3.51ms` from Istanbul, TR
221.203.20.214	AS4837 CHINA UNICOM China169 Backbone	`8.11ms` from Liaoyang, CN
38.12.247.6	AS398823 PEG TECH INC	`0.45ms` from Los Angeles, US
37.45.147.134	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`1.74ms` from Minsk, BY
61.36.95.86	AS3786 LG DACOM Corporation	`1.62ms` from Seoul, KR
220.77.78.118	AS4766 Korea Telecom	`6.08ms` from Seoul, KR
49.85.233.86	AS140292 CHINATELECOM Jiangsu province Suzhou 5G network	`5.60ms` from Shanghai, CN
1.170.138.214	AS3462 Data Communication Business Group	`2.10ms` from Taichung, TW
118.194.228.38	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED	`0.83ms` from Tokyo, JP
111.177.89.246	AS4134 CHINANET-BACKBONE	`6.77ms` from Wuhan, CN
61.49.87.166	AS4808 China Unicom Beijing Province Network	`2.96ms` from Beijing, CN
203.196.249.230	AS4755 TATA Communications formerly VSNL is Leading ISP	`1.15ms` from Bengaluru, IN
208.98.236.6	AS6327 Shaw Communications Inc.	`1.37ms` from Calgary, CA
27.12.49.70	AS4837 CHINA UNICOM China169 Backbone	`5.89ms` from Chongqing, CN
39.36.12.86	AS17557 Pakistan Telecommunication Company Limited	`18.11ms` from Islamabad, PK
107.207.100.214	AS7018 AT&T Enterprises, LLC	`3.34ms` from Los Angeles, US
176.135.220.182	AS5410 Bouygues Telecom SA	`13.12ms` from Marseille, FR
104.253.50.6	AS9009 M247 Europe SRL	`0.39ms` from Montreal, CA
103.189.173.38	AS140641 YOTTA NETWORK SERVICES PRIVATE LIMITED	`0.20ms` from Mumbai, IN

Traceroute

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

traceroute -a -n -q1 -f4 -m11 147.72.255.58

traceroute to 147.72.255.58 (147.72.255.58): 11 hops max, 52 byte packets

4 [AS6939] 72.52.92.250 9.724 ms

5 *

6 *

7 [] 206.71.141.50 43.061 ms

8 [AS5050] 147.73.16.249 14.658 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Columbus, US

On August 28th 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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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