1. All IP Ranges
  2. 204.0.0.0/8
  3. 204.38.0.0/16
  4. AS237  | 204.38.0.0/16

204.38.0.0/16

AS237  ·  Merit Network Inc.

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Summary

Country United States
Domain merit.edu
ASN AS237
Registry ARIN
ID MICH-71

WHOIS Details

NetHandle:      NET-204-38-0-0-1
OrgID:          MICH-Z
Parent:         NET-204-0-0-0-0
NetName:        MICH-71
NetRange:       204.38.0.0 - 204.38.255.255
NetType:        allocation
RegDate:        1994-05-13
Updated:        2024-02-08
TechHandle:     MERIT3-ARIN
Source:         ARIN


OrgID:          MICH-Z
OrgName:        Merit Network Inc.
CanAllocate:    
Street:         880 Technology Dr., Suite B
City:           Ann Arbor
State/Prov:     MI
Country:        US
PostalCode:     48108
RegDate:        2009-12-08
Updated:        2020-04-21
OrgAdminHandle: IN-ORG-ARIN
OrgTechHandle:  MERIT-ARIN
OrgAbuseHandle: NETWO26-ARIN
Source:         ARIN


POCHandle:      MERIT-ARIN
IsRole:         Y
LastName:       Merit Operations
FirstName:      
Street:         880 Technology Dr.
Street:         Suite B
City:           Ann Arbor
State/Prov:     MI
Country:        US
PostalCode:     48108-8963
RegDate:        2007-02-21
Updated:        2025-10-28
OfficePhone:    +1-734-527-5717
Mailbox:        operations@merit.edu
Source:         ARIN


POCHandle:      NETWO26-ARIN
IsRole:         Y
LastName:       Network Abuse
FirstName:      
Street:         880 Technology Dr.
Street:         Suite B
City:           Ann Arbor
State/Prov:     MI
Country:        US
PostalCode:     48108-8963
RegDate:        2002-09-20
Updated:        2025-04-22
OfficePhone:    +1-734-527-5740
Mailbox:        abuse@merit.edu
Source:         ARIN


POCHandle:      IN-ORG-ARIN
IsRole:         Y
LastName:       Internet Number Administrator
FirstName:      
Street:         880 Technology Dr.,  Suite B
City:           Ann Arbor
State/Prov:     MI
Country:        US
PostalCode:     48108-8963
RegDate:        1999-02-18
Updated:        2025-11-24
OfficePhone:    +1-734-763-3448
FaxPhone:       +1-734-527-5790
Mailbox:        ipreg@merit.edu
Source:         ARIN


POCHandle:      MERIT3-ARIN
IsRole:         Y
LastName:       Merit SWIP
FirstName:      
Street:         880 Technology Drive
Street:         Suite B
City:           Ann Arbor
State/Prov:     MI
Country:        US
PostalCode:     48108
RegDate:        2020-04-20
Updated:        2024-11-21
OfficePhone:    +1-734-763-3448
Mailbox:        ipreg@merit.edu
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 204.0.0.0/8

Range ASN Company Num of IPs
204.4.0.0/14 AS174 Cogent Communications, LLC 262,144
204.252.0.0/14 AS11606 Verizon Business 262,144
204.252.0.0/14 AS22883 Verizon Business 262,144
204.248.0.0/14 AS174 Sprint 262,144
204.212.0.0/14 AS174 Sprint 262,144
204.180.0.0/14 AS174 Sprint 262,144
204.240.0.0/14 AS174 Cogent Communications, LLC 262,144
204.176.0.0/14 AS15297 Verizon Business 262,144
204.176.0.0/14 AS701 Verizon Business 262,144
204.252.0.0/14 AS701 Verizon Business 262,144
204.148.0.0/14 AS701 Verizon Business 262,144
204.200.0.0/14 AS2914 NTT America, Inc. 262,144
204.0.0.0/14 AS203020 NTT America, Inc. 262,144
204.64.0.0/14 AS1761 Texas Department of Information Resources 262,144
204.0.0.0/14 AS2914 NTT America, Inc. 262,144
204.84.0.0/15 AS20197 MCNC 131,072
204.170.0.0/15 AS2914 NTT America, Inc. 131,072
204.142.0.0/15 AS2914 NTT America, Inc. 131,072
204.84.0.0/15 AS6559 MCNC 131,072
204.84.0.0/15 AS81 MCNC 131,072
204.20.0.0/15 AS749 DoD Network Information Center 131,072
204.72.0.0/15 AS5006 Inteliquent, inc. 131,072
204.70.0.0/15 AS3561 CenturyLink Communications, LLC 131,072
204.84.0.0/15 AS11442 MCNC 131,072
204.70.0.0/15 AS11012 CenturyLink Communications, LLC 131,072
204.46.0.0/15 AS14298 Environmental Protection Agency 131,072
204.220.0.0/15 AS5006 Inteliquent, inc. 131,072
204.72.0.0/15 AS1347 Inteliquent, inc. 131,072
204.41.0.0/16 AS859 GONET 65,536
204.41.0.0/16 AS808 GONET 65,536
204.41.0.0/16 AS871 GONET 65,536
204.191.0.0/16 AS7861 TELUS Communications Inc. 65,536
204.41.0.0/16 AS869 GONET 65,536
204.41.0.0/16 AS870 GONET 65,536
204.41.0.0/16 AS872 GONET 65,536
204.83.0.0/16 AS803 Saskatchewan Telecommunications 65,536
204.41.0.0/16 AS860 GONET 65,536
204.157.0.0/16 AS174 Cogent Communications, LLC 65,536
204.186.0.0/16 AS3737 PenTeleData Inc. 65,536
204.60.0.0/16 AS27025 AT&T Enterprises, LLC 65,536
204.40.0.0/16 AS808 GONET 65,536
204.92.0.0/16 AS852 Verizon Business 65,536
204.41.0.0/16 AS858 GONET 65,536
204.146.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
204.41.0.0/16 AS863 GONET 65,536
204.60.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
204.208.0.0/16 AS5972 Headquarters, USAISC 65,536
204.41.0.0/16 AS862 GONET 65,536
204.41.0.0/16 AS864 GONET 65,536
204.196.0.0/16 AS2048 State of Louisiana Office of Technology Services 65,536

Hosted domains

There are 52 domain names hosted across 9 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
204.38.4.6 aadl.org 33
204.38.5.12 beringglacier.org 11
204.38.21.25 debmorley.com 2
204.38.55.67 uproc.lib.mi.us 1
204.38.70.2 bath.k12.mi.us 1
204.38.148.121 reeths-puffer.k12.mi.us 1
204.38.146.77 orchardview.k12.mi.us 1
204.38.174.212 wrcs.k12.mi.us 1
204.38.55.73 crawfordco.lib.mi.us 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
Read more

Pingable IPs

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

IP Address ASN Details
204.38.54.192 AS237 Merit Network Inc. 11.90ms from Chicago, US
204.38.18.29 AS237 Merit Network Inc. 11.91ms from Chicago, US
204.38.4.81 AS237 Merit Network Inc. 4.47ms from Detroit, US
204.38.12.89 AS237 Merit Network Inc. 1.52ms from Detroit, US
204.38.10.211 AS237 Merit Network Inc. 6.88ms from Grand Rapids, US
204.38.213.2 AS237 Merit Network Inc. 10.56ms from Chicago, US
204.38.30.193 AS237 Merit Network Inc. 4.32ms from Detroit, US
204.38.175.249 AS237 Merit Network Inc. 11.20ms from Chicago, US
204.38.5.65 AS237 Merit Network Inc. 4.51ms from Detroit, US
204.38.182.178 AS237 Merit Network Inc. 13.05ms from Chicago, US
204.38.49.189 AS237 Merit Network Inc. 11.66ms from Chicago, US
204.38.40.1 AS237 Merit Network Inc. 0.60ms from Chicago, US
204.38.55.3 AS237 Merit Network Inc. 10.77ms from Grand Rapids, US
204.38.53.98 AS237 Merit Network Inc. 7.07ms from Chicago, US
204.38.183.151 AS237 Merit Network Inc. 13.19ms from Chicago, US
204.38.7.65 AS237 Merit Network Inc. 4.29ms from Detroit, US
204.38.204.189 AS237 Merit Network Inc. 11.16ms from Chicago, US
204.38.19.64 AS237 Merit Network Inc. 10.75ms from Chicago, US
204.38.180.1 AS237 Merit Network Inc. 9.91ms from Chicago, US
204.38.52.66 AS237 Merit Network Inc. 6.77ms from Chicago, US
204.38.48.22 AS237 Merit Network Inc. 11.36ms 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
86.80.152.80 AS1136 KPN B.V. 2.48ms from Amsterdam, NL
68.82.108.160 AS7922 Comcast Cable Communications, LLC 7.62ms from Ashburn, US
58.31.48.16 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 9.49ms from Beijing, CN
172.12.253.96 AS7018 AT&T Enterprises, LLC 2.33ms from Chicago, US
99.182.41.16 AS7018 AT&T Enterprises, LLC 17.16ms from Durham, US
39.184.204.176 AS56041 China Mobile communications corporation 5.81ms from Hangzhou, CN
37.107.12.32 AS25019 Saudi Telecom Company JSC 5.69ms from Jeddah, SA
82.1.59.96 AS5089 Virgin Media Limited 13.22ms from London, GB
23.40.58.192 AS16625 Akamai Technologies, Inc. 0.47ms from Miami, US
123.128.219.208 AS4837 CHINA UNICOM China169 Backbone 5.34ms from Qingdao, CN
39.117.12.240 AS9318 SK Broadband Co Ltd 2.08ms from Seoul, KR
210.161.178.224 AS4713 NTT DOCOMO BUSINESS,Inc. 2.57ms from Tokyo, JP
23.165.168.32 AS14490 Nexavo Ltd. 4.12ms from Chicago, US
97.243.223.160 AS6167 Verizon Business 9.55ms from Chicago, US
34.66.163.0 AS396982 Google LLC 0.12ms from Council Bluffs, US
66.69.250.208 AS11427 Charter Communications Inc 5.48ms from Dallas, US
68.251.204.0 AS32625 OFFSITE, LLC 0.36ms from Denver, US
192.92.147.32 AS1930 Fundacao para a Ciencia e a Tecnologia, I.P. 1.12ms from Lisbon, PT
80.24.9.0 AS3352 TELEFONICA DE ESPANA S.A.U. 8.21ms from Madrid, ES
79.164.95.160 AS8615 "Central Telegraph" Public Joint-stock Company 1.74ms from Moscow, RU
98.109.46.80 AS701 Verizon Business 1.92ms from New York City, US
111.217.0.160 AS2527 Sony Network Communications Inc. 2.02ms from Osaka, JP
85.113.52.208 AS34533 JSC "ER-Telecom Holding" 0.48ms from Samara, RU
124.216.241.192 AS45361 Ulsan Jung-Ang Broadcasting Network 7.87ms from Seoul, KR
115.1.183.224 AS4766 Korea Telecom 2.25ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -m5 204.38.120.111
traceroute to 204.38.120.111 (204.38.120.111): 5 hops max, 52 byte packets
1 [AS15169] 108.170.234.152 109.309 ms
2 [AS237] 192.35.170.65 113.284 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Milan, IT
On

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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