204.84.112.0/21

AS81 · MCNC

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Summary

Country	United States
Domain	mcnc.org
ASN	AS81
Parent Range	204.84.0.0/15
Registry	ARIN
ID	NCREN-CIDR3

WHOIS Details

NetHandle:      NET-204-84-0-0-1
OrgID:          MCNC-Z
Parent:         NET-204-0-0-0-0
NetName:        NCREN-CIDR3
NetRange:       204.84.0.0 - 204.85.255.255
NetType:        allocation
RegDate:        1994-06-30
Updated:        2021-06-29
TechHandle:     NH34-ORG-ARIN
Source:         ARIN


OrgID:          MCNC-Z
OrgName:        MCNC
CanAllocate:    
Street:         3021 E. Cornwallis Rd
City:           Durham
State/Prov:     NC
Country:        US
PostalCode:     27713-2852
RegDate:        2021-06-14
Updated:        2026-02-12
OrgAdminHandle: NCREN-ARIN
OrgTechHandle:  NCREN-ARIN
OrgAbuseHandle: ABUSE3348-ARIN
Source:         ARIN


POCHandle:      NCREN-ARIN
IsRole:         Y
LastName:       NCREN Hostmaster
FirstName:      
Street:         3021 East Cornwallis Road
Street:         Building 3
City:           Durham
State/Prov:     NC
Country:        US
PostalCode:     27713-2852
RegDate:        2019-06-20
Updated:        2026-02-12
OfficePhone:    +1-919-248-4111
FaxPhone:       +1-919-248-1405
Mailbox:        hostmaster@ncren.net
Source:         ARIN


POCHandle:      NH34-ORG-ARIN
IsRole:         Y
LastName:       NCREN Hostmaster
FirstName:      
Street:         3021 E. Cornwallis Road
Street:         Building 3
City:           Durham
State/Prov:     NC
Country:        US
PostalCode:     27713-2852
RegDate:        1970-01-01
Updated:        2026-02-12
OfficePhone:    +1-919-248-4111
FaxPhone:       +1-919-248-1405
Mailbox:        hostmaster@ncren.net
Source:         ARIN


POCHandle:      ABUSE3348-ARIN
IsRole:         Y
LastName:       Abuse Contact
FirstName:      
Street:         3021 E. Cornwallis Rd.
Street:         Building 3
City:           Durham
State/Prov:     NC
Country:        US
PostalCode:     27713-2852
RegDate:        2012-02-21
Updated:        2026-02-12
OfficePhone:    +1-919-248-4111
Mailbox:        abuse@mcnc.org
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 204.84.112.0/21

Range	ASN	Company	Num of IPs
204.84.0.0/15	AS11442	MCNC	131,072
204.84.0.0/15	AS20197	MCNC	131,072
204.84.0.0/15	AS6559	MCNC	131,072
204.84.0.0/15	AS81	MCNC	131,072

Nearby Ranges

BGP prefixes that overlap with 204.84.0.0/16

Range	ASN	Company	Num of IPs
204.84.0.0/15	AS11442	MCNC	131,072
204.84.0.0/15	AS20197	MCNC	131,072
204.84.0.0/15	AS6559	MCNC	131,072
204.84.0.0/15	AS81	MCNC	131,072
204.84.252.0/22	AS36850	University of North Carolina at Chapel Hill	1,024
204.84.8.0/22	AS36850	University of North Carolina at Chapel Hill	1,024

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

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

IP Address	ASN	Details
204.84.112.14	AS81 MCNC	`7.12ms` from Atlanta, 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
109.93.17.37	AS8400 TELEKOM SRBIJA a.d.	`5.36ms` from Belgrade, RS
116.72.156.197	AS17488 Hathway IP Over Cable Internet	`1.17ms` from Bengaluru, IN
24.211.134.197	AS11426 Charter Communications Inc	`10.28ms` from Charlotte, US
38.44.226.133	AS2731 Infinity Fiber LLC	`4.96ms` from Columbus, US
185.193.126.117	AS39287 Materialism s.r.l.	`1.55ms` from Copenhagen, DK
80.171.85.85	AS6805 Telefonica Germany GmbH & Co.OHG	`3.02ms` from Duesseldorf, DE
45.182.248.21	AS269245 Cabo Fibra Telecom	`10.32ms` from Fortaleza, BR
120.33.28.5	AS4134 CHINANET-BACKBONE	`5.76ms` from Fuzhou, CN
47.110.147.37	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.86ms` from Hangzhou, CN
209.34.193.5	AS62808 McGrath North	`5.27ms` from Kansas City, US
86.176.237.197	AS2856 British Telecommunications PLC	`3.30ms` from London, GB
109.146.199.37	AS2856 British Telecommunications PLC	`1.69ms` from London, GB
216.113.162.85	AS40533 eBay, Inc	`5.61ms` from Los Angeles, US
81.202.168.5	AS6739 VODAFONE ONO, S.A.	`9.23ms` from Madrid, ES
218.131.29.53	AS17676 SoftBank Corp.	`4.21ms` from Osaka, JP
93.149.38.101	AS30722 Fastweb SpA	`7.73ms` from Rome, IT
177.132.186.181	AS18881 TELEFÔNICA BRASIL S.A	`10.52ms` from São Paulo, BR
60.18.168.165	AS4837 CHINA UNICOM China169 Backbone	`2.29ms` from Tieling, CN
35.75.226.165	AS16509 Amazon.com, Inc.	`0.21ms` from Tokyo, JP
213.34.2.37	AS33915 Vodafone Libertel B.V.	`0.50ms` from Amsterdam, NL
178.40.116.197	AS6855 Slovak Telekom, a.s.	`7.56ms` from Bratislava, SK
198.150.182.21	AS2381 WiscNet	`5.52ms` from Chicago, US
104.231.103.133	AS10796 Charter Communications Inc	`7.29ms` from Cleveland, US
101.78.137.85	AS9381 HKBN Enterprise Solutions HK Limited	`0.70ms` from Hong Kong, HK
46.236.28.181	AS12703 Pulsant (Scotland) Ltd	`1.85ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f5 -m13 204.84.114.25

traceroute to 204.84.114.25 (204.84.114.25): 13 hops max, 52 byte packets

5 [AS8697] 213.139.41.5 1.192 ms

6 *

7 [AS3356] 4.69.219.146 153.722 ms

8 [AS3356] 4.15.180.74 157.954 ms

9 [AS81] 128.109.9.22 164.886 ms

10 [AS81] 128.109.1.222 165.369 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Amman, JO

On March 13th 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.

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