166.66.192.0/21

AS398813 · Millersville University of Pennsylvania

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Summary

Country	United States
Domain	millersville.edu
ASN	AS398813
Registry	ARIN
ID	MILLERSVILLE

WHOIS Details

NetHandle:      NET-166-66-0-0-1
OrgID:          MILLER-1-Z
Parent:         NET-166-0-0-0-0
NetName:        MILLERSVILLE
NetRange:       166.66.0.0 - 166.66.255.255
NetType:        allocation
RegDate:        1993-10-22
Updated:        2023-06-12
Source:         ARIN


OrgID:          MILLER-1-Z
OrgName:        Millersville University of Pennsylvania
CanAllocate:    
Street:         Boyer Building
Street:         37 W. Frederick Street
City:           Millersville
State/Prov:     PA
Country:        US
PostalCode:     17551
RegDate:        1992-08-06
Updated:        2023-06-12
OrgAdminHandle: MILLI269-ARIN
OrgTechHandle:  MILLI269-ARIN
OrgAbuseHandle: ABUSE725-ARIN
OrgAbuseHandle: MILLI269-ARIN
OrgNOCHandle:   MILLI269-ARIN
OrgRoutingHandle:   MILLI269-ARIN
OrgDNSHandle:   MILLI269-ARIN
Source:         ARIN


POCHandle:      ABUSE725-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         PO Box 1002
City:           Millersville
State/Prov:     PA
Country:        US
PostalCode:     17551
RegDate:        2004-09-28
Updated:        2025-02-21
OfficePhone:    +1-717-871-7777
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      MILLI269-ARIN
IsRole:         Y
LastName:       Mill-Infosec
FirstName:      
Street:         37 West Frederick St.
City:           millersville
State/Prov:     PA
Country:        US
PostalCode:     17551
RegDate:        2020-07-02
Updated:        2025-09-22
OfficePhone:    +1-717-871-7777
Mailbox:        [email protected]
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 166.66.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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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
183.172.76.229	AS4538 China Education and Research Network Center	`5.58ms` from Beijing, CN
134.3.190.213	AS3209 Vodafone GmbH	`10.64ms` from Frankfurt am Main, DE
219.128.13.165	AS4134 CHINANET-BACKBONE	`3.84ms` from Guangzhou, CN
122.230.229.149	AS4134 CHINANET-BACKBONE	`7.03ms` from Hangzhou, CN
14.173.209.149	AS45899 VNPT Corp	`3.53ms` from Ho Chi Minh City, VN
23.52.72.133	AS20940 Akamai International B.V.	`0.40ms` from London, GB
195.31.131.133	AS3269 Telecom Italia S.p.A.	`4.47ms` from Milan, IT
79.54.52.85	AS3269 Telecom Italia S.p.A.	`4.57ms` from Milan, IT
90.63.94.133	AS3215 Orange S.A.	`5.86ms` from Paris, FR
107.121.197.5	AS13965 AT&T Enterprises, LLC	`1.79ms` from Seattle, US
124.198.44.229	AS4766 Korea Telecom	`0.81ms` from Seoul, KR
60.185.215.245	AS4134 CHINANET-BACKBONE	`8.95ms` from Shanghai, CN
185.156.54.5	AS44600 "GIGATRANS UKRAINE", LLC	`0.49ms` from Warsaw, PL
172.174.31.53	AS8075 Microsoft Corporation	`0.38ms` from Ashburn, US
104.14.17.85	AS7018 AT&T Enterprises, LLC	`12.52ms` from Atlanta, US
184.28.193.245	AS20940 Akamai International B.V.	`0.31ms` from Buenos Aires, AR
73.73.84.5	AS7922 Comcast Cable Communications, LLC	`6.35ms` from Chicago, US
118.178.138.181	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.48ms` from Hangzhou, CN
113.4.58.5	AS4837 CHINA UNICOM China169 Backbone	`5.96ms` from Harbin, CN
218.92.78.37	AS4134 CHINANET-BACKBONE	`8.24ms` from Huai'an, CN
71.83.80.101	AS20115 Charter Communications LLC	`6.01ms` from Los Angeles, US
175.37.57.181	AS4804 Microplex PTY LTD	`3.66ms` from Melbourne, AU
160.72.153.85	AS46887 Crown Castle Fiber LLC	`0.55ms` from New York City, US
180.54.213.53	AS4713 NTT DOCOMO BUSINESS,Inc.	`13.14ms` from Osaka, JP
217.109.168.101	AS3215 Orange S.A.	`6.52ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 -f5 -m9 166.66.196.125

traceroute to 166.66.196.125 (166.66.196.125): 9 hops max, 52 byte packets

5 [AS3356] 4.69.207.93 39.086 ms

6 [AS3356] 4.30.42.110 42.348 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Gretna, US

On January 9th 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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