72.36.80.0/23

AS38 · University of Illinois

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Summary

Country	United States
Domain	illinois.edu
ASN	AS38
Parent Range	72.36.64.0/18
Registry	ARIN
ID	UIUC-CAMPUS-D

WHOIS Details

NetHandle:      NET-72-36-64-0-1
OrgID:          UIUC
Parent:         NET-72-0-0-0-0
NetName:        UIUC-CAMPUS-D
NetRange:       72.36.64.0 - 72.36.127.255
NetType:        allocation
RegDate:        2006-06-21
Updated:        2021-12-14
Source:         ARIN


OrgID:          UIUC
OrgName:        University of Illinois
CanAllocate:    
Street:         1120 DCL, MC-256
Street:         1304 West Springfield Avenue
City:           Urbana
State/Prov:     IL
Country:        US
PostalCode:     61801
RegDate:        1970-01-01
Updated:        2014-12-02
OrgAdminHandle: HOSTM159-ARIN
OrgTechHandle:  HOSTM159-ARIN
OrgAbuseHandle: UIUCS-ARIN
Source:         ARIN


POCHandle:      UIUCS-ARIN
IsRole:         Y
LastName:       UIUC Security
FirstName:      
Street:         1304 West Springfield Avenue
Street:         2222 DCL, MC-256
City:           Urbana
State/Prov:     IL
Country:        US
PostalCode:     61801
RegDate:        2003-12-16
Updated:        2026-03-25
OfficePhone:    +1-217-265-0000
Mailbox:        abuse@illinois.edu
Source:         ARIN


POCHandle:      HOSTM159-ARIN
IsRole:         Y
LastName:       Hostmgr
FirstName:      
Street:         1304 West Springfield Avenue
City:           Urbana
State/Prov:     IL
Country:        US
PostalCode:     61801
RegDate:        2003-01-17
Updated:        2025-04-21
OfficePhone:    +1-217-244-1000
Mailbox:        dns-admin@illinois.edu
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 72.36.80.0/23

Range	ASN	Company	Num of IPs
72.36.64.0/18	AS38	University of Illinois	16,384
72.36.64.0/18	AS40387	University of Illinois	16,384

Nearby Ranges

BGP prefixes that overlap with 72.36.0.0/16

Range	ASN	Company	Num of IPs
72.36.0.0/18	AS30110	Advanced Communications Technology	16,384
72.36.64.0/18	AS38	University of Illinois	16,384
72.36.64.0/18	AS40387	University of Illinois	16,384
72.36.4.0/24	AS14487	Wind River Internet	256

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

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

IP Address	ASN	Details
72.36.81.131	AS38 University of Illinois	`2.96ms` from Chicago, US
72.36.80.109	AS38 University of Illinois	`3.01ms` from Chicago, 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
85.75.81.55	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`3.28ms` from Athens, GR
197.48.125.71	AS8452 TE-AS	`8.38ms` from Cairo, EG
20.79.69.23	AS8075 Microsoft Corporation	`0.29ms` from Frankfurt am Main, DE
86.14.161.55	AS5089 Virgin Media Limited	`5.26ms` from London, GB
20.117.223.231	AS8075 Microsoft Corporation	`0.26ms` from London, GB
88.17.118.23	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.98ms` from Madrid, ES
147.182.160.87	AS14061 DigitalOcean, LLC	`0.29ms` from New York City, US
89.90.34.183	AS5410 Bouygues Telecom SA	`2.68ms` from Paris, FR
115.16.81.199	AS4766 Korea Telecom	`6.59ms` from Seoul, KR
37.122.105.87	AS28812 PJSC Bashinformsvyaz	`8.99ms` from Yekaterinburg, RU
34.10.33.199	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
34.58.89.135	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
171.247.70.103	AS7552 Viettel Group	`2.35ms` from Ho Chi Minh City, VN
196.3.110.247	AS16637 MTN SA	`2.47ms` from Johannesburg, ZA
178.158.196.39	AS43139 Maximum-Net LLC	`0.96ms` from Kyiv, UA
104.35.20.7	AS20001 Charter Communications Inc	`5.71ms` from Los Angeles, US
94.164.168.135	AS1267 WIND TRE S.P.A.	`16.07ms` from Milan, IT
180.117.127.247	AS4134 CHINANET-BACKBONE	`6.35ms` from Nanjing, CN
123.132.121.55	AS4837 CHINA UNICOM China169 Backbone	`7.10ms` from Qingdao, CN
116.122.66.7	AS9318 SK Broadband Co Ltd	`5.35ms` from Seoul, KR
39.109.251.247	AS55430 Starhub Ltd	`1.59ms` from Singapore, SG
5.251.53.167	AS9198 JSC Kazakhtelecom	`2.35ms` from Almaty, KZ
71.77.2.231	AS11426 Charter Communications Inc	`11.13ms` from Charlotte, US
184.24.73.55	AS20940 Akamai International B.V.	`0.73ms` from Chicago, US
220.192.34.215	AS4837 CHINA UNICOM China169 Backbone	`2.06ms` from Chongqing, CN

Traceroute

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

traceroute -a -n -q1 -f2 72.36.80.69

traceroute to 72.36.80.69 (72.36.80.69): 64 hops max, 52 byte packets

2 [] 156.146.32.232 90.124 ms

3 [AS1299] 62.115.187.241 0.501 ms

4 [AS1299] 213.248.71.115 0.593 ms

5 [AS40387] 72.36.127.86 3.054 ms

6 [AS38] 72.36.80.69 3.593 ms

Measurement taken from

IPinfo ProbeNet in Chicago, US

On April 4th 2026

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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