204.100.203.0/24

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:        2025-10-20
TechHandle:     ELLIS608-ARIN
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:        2025-10-20
OrgAdminHandle: WILKI325-ARIN
OrgTechHandle:  ELLIS608-ARIN
OrgTechHandle:  WILKI325-ARIN
OrgAbuseHandle: WILKI325-ARIN
OrgNOCHandle:   WILKI325-ARIN
OrgRoutingHandle:   WILKI325-ARIN
OrgDNSHandle:   WILKI325-ARIN
Source:         ARIN


POCHandle:      ELLIS608-ARIN
IsRole:         N
LastName:       Ellis
FirstName:      Jared
Street:         3939 Thirteenth Street
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92502
RegDate:        2025-09-12
Updated:        2025-09-12
OfficePhone:    +1-951-826-6556
Mailbox:        [email protected]
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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 204.100.203.0/24

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

Nearby Ranges

BGP prefixes that overlap with 204.100.0.0/16

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
217.164.249.136	AS5384 Emirates Internet	`4.57ms` from Al Fujairah City, AE
100.48.1.72	AS14618 Amazon.com, Inc.	`0.99ms` from Ashburn, US
108.28.91.24	AS701 Verizon Business	`1.58ms` from Ashburn, US
152.69.229.216	AS31898 Oracle Corporation	`0.16ms` from Chuncheon, KR
87.178.56.120	AS3320 Deutsche Telekom AG	`7.01ms` from Frankfurt am Main, DE
120.83.243.40	AS17816 China Unicom IP network China169 Guangdong province	`4.45ms` from Guangzhou, CN
81.105.46.104	AS5089 Virgin Media Limited	`4.01ms` from London, GB
129.169.160.248	AS786 Jisc Services Limited	`2.41ms` from London, GB
178.121.130.72	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`6.20ms` from Minsk, BY
200.50.147.24	AS271711 LIGMAX PROVEDOR DE ACESSO A INTERNET LTDA	`19.36ms` from Osasco, BR
220.77.93.56	AS4766 Korea Telecom	`6.71ms` from Seoul, KR
116.237.189.184	AS4812 China Telecom (Group)	`2.27ms` from Shanghai, CN
94.236.128.88	AS42555 OPTICCOM- BULGARIA Ltd.	`0.78ms` from Sofia, BG
212.80.19.120	AS48147 Asre Pardazeshe Ettelaate Amin Institute	`18.39ms` from Yerevan, AM
95.62.112.232	AS12430 VODAFONE ESPANA S.A.U.	`5.37ms` from Barcelona, ES
13.33.82.168	AS16509 Amazon.com, Inc.	`0.09ms` from Boston, US
34.14.57.216	AS396982 Google LLC	`0.15ms` from Brussels, BE
78.21.228.184	AS6848 Telenet BV	`7.94ms` from Brussels, BE
187.155.78.216	AS8151 UNINET	`12.94ms` from Cancún, MX
27.14.59.216	AS4837 CHINA UNICOM China169 Backbone	`4.12ms` from Chongqing, CN
90.215.148.88	AS5607 Sky UK Limited	`2.52ms` from Erith, GB
136.35.127.8	AS16591 Google Fiber Inc.	`0.81ms` from Kansas City, US
100.2.97.152	AS701 Verizon Business	`2.60ms` from New York City, US
119.241.213.248	AS2518 BIGLOBE Inc.	`10.40ms` from Osaka, JP
213.245.251.72	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`6.68ms` 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 -f3 -m18 204.100.203.110

traceroute to 204.100.203.110 (204.100.203.110): 18 hops max, 52 byte packets

3 [] 15.230.139.194 351.837 ms

4 [] 15.230.139.12 3.095 ms

5 *

6 *

7 *

8 [] 151.148.9.210 71.788 ms

9 [] 151.148.9.211 71.072 ms

10 [AS2152] 137.164.11.81 81.122 ms

11 [AS2152] 137.164.11.20 80.286 ms

12 [AS2152] 137.164.11.110 80.376 ms

13 [AS2152] 137.164.11.87 80.933 ms

14 [AS2152] 137.164.1.111 80.255 ms

15 [AS18558] 204.100.204.66 81.169 ms

16 *

17 *

18 *

Measurement taken from

IPinfo ProbeNet in Minneapolis, US

On December 28th 2025

What are IP address ranges?

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