204.100.38.0/24

AS18558 · Riverside County Office of Education

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Summary

Country	United States
Domain	rcoe.us
ASN	AS18558
Parent Range	204.100.0.0/16
Registry	ARIN
ID	RCOEK-12NET

WHOIS Details

NetHandle:      NET-204-100-0-0-1
OrgID:          COUNTY-20
Parent:         NET-204-0-0-0-0
NetName:        RCOEK-12NET
NetRange:       204.100.0.0 - 204.100.255.255
NetType:        allocation
RegDate:        1994-07-13
Updated:        2025-09-03
TechHandle:     WILKI325-ARIN
AbuseHandle:    WILKI325-ARIN
NOCHandle:      WILKI325-ARIN
Source:         ARIN


OrgID:          COUNTY-20
OrgName:        County of Riverside
CanAllocate:    
Street:         Information Technology Services
Street:         3939 Thirteenth Street
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92502
RegDate:        1994-07-13
Updated:        2025-09-11
OrgAdminHandle: WILKI325-ARIN
OrgTechHandle:  RD75-ARIN
OrgTechHandle:  WILKI325-ARIN
OrgAbuseHandle: RD75-ARIN
OrgAbuseHandle: WILKI325-ARIN
OrgNOCHandle:   RD75-ARIN
OrgNOCHandle:   WILKI325-ARIN
OrgRoutingHandle:   RD75-ARIN
OrgRoutingHandle:   WILKI325-ARIN
OrgDNSHandle:   RD75-ARIN
OrgDNSHandle:   WILKI325-ARIN
Source:         ARIN


POCHandle:      RD75-ARIN
IsRole:         N
LastName:       D'Souza
FirstName:      Richard
Street:         Riverside County Office of Education
Street:         3939 13th Street
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92502
RegDate:        1998-05-15
Updated:        2025-01-08
OfficePhone:    +1-951-826-6475
Mailbox:        rdsouza@rcoe.us
Source:         ARIN


POCHandle:      WILKI325-ARIN
IsRole:         N
LastName:       Wilkinson
FirstName:      David
Street:         3939 Thirteenth Street
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92502
RegDate:        2025-01-08
Updated:        2025-09-04
OfficePhone:    +1-951-826-6560
Mailbox:        dwilkinson@rcoe.us
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 204.100.38.0/24

Range	ASN	Company	Num of IPs
204.100.0.0/16	AS18558	County of Riverside	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
34.86.132.184	AS396982 Google LLC	`0.11ms` from Ashburn, US
84.1.209.232	AS5483 Magyar Telekom Plc.	`1.47ms` from Budapest, HU
108.227.232.24	AS7018 AT&T Enterprises, LLC	`10.13ms` from Chicago, US
87.166.150.248	AS3320 Deutsche Telekom AG	`9.23ms` from Frankfurt am Main, DE
94.23.233.136	AS16276 OVH SAS	`1.68ms` from Gravelines, FR
122.236.72.136	AS4134 CHINANET-BACKBONE	`8.24ms` from Hangzhou, CN
89.203.75.184	AS21050 Fast Communication Company Ltd	`1.40ms` from Kuwait City, KW
78.136.37.200	AS15395 Rackspace Ltd.	`1.08ms` from London, GB
72.146.29.184	AS8075 Microsoft Corporation	`0.23ms` from Milan, IT
98.98.217.168	AS21859 Zenlayer Inc	`0.72ms` from Moscow, RU
186.227.25.168	AS53182 lazernet.com.br ltda me	`8.31ms` from Sao Paulo, BR
78.83.168.72	AS8717 A1 Bulgaria EAD	`6.91ms` from Sofia, BG
101.191.36.8	AS1221 Telstra Limited	`19.19ms` from Sydney, AU
114.45.14.88	AS3462 Data Communication Business Group	`0.72ms` from Taipei, TW
37.25.39.40	AS16116 Pelephone Communications Ltd.	`14.33ms` from Tel Aviv, IL
125.45.16.200	AS4837 CHINA UNICOM China169 Backbone	`6.85ms` from Zhengzhou, CN
2.38.158.168	AS30722 Vodafone Italia S.p.A.	`13.76ms` from Arezzo, IT
171.7.127.216	AS45758 Triple T Broadband Public Company Limited	`2.79ms` from Bangkok, TH
3.144.181.248	AS16509 Amazon.com, Inc.	`0.68ms` from Columbus, US
181.94.34.232	AS7303 Telecom Argentina S.A.	`6.30ms` from Cordoba, AR
93.241.195.232	AS3320 Deutsche Telekom AG	`4.59ms` from Duesseldorf, DE
18.185.200.168	AS16509 Amazon.com, Inc.	`0.21ms` from Frankfurt am Main, DE
41.198.247.200	AS328306 Avanti Communications South Africa (Pty) Ltd	`0.59ms` from Johannesburg, ZA
213.123.224.136	AS2856 British Telecommunications PLC	`2.67ms` from London, GB
187.158.44.72	AS8151 UNINET	`17.45ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f2 -m7 204.100.38.37

traceroute to 204.100.38.37 (204.100.38.37): 7 hops max, 52 byte packets

2 [] 84.17.33.92 0.372 ms

3 [AS7922] 96.87.9.17 0.648 ms

4 [AS7922] 96.110.33.198 0.758 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Chicago, US

On September 11th 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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