204.100.156.0/24

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 204.100.156.0/24

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
212.247.72.8	AS1257 Tele2 Sverige AB	`4.76ms` from Falkenberg, SE
223.215.102.104	AS4134 CHINANET-BACKBONE	`6.92ms` from Huai'an, CN
58.238.193.120	AS9318 SK Broadband Co Ltd	`1.78ms` from Incheon, KR
95.248.145.56	AS3269 Telecom Italia S.p.A.	`4.92ms` from Milan, IT
175.213.131.120	AS4766 Korea Telecom	`3.98ms` from Seoul, KR
125.139.250.120	AS4766 Korea Telecom	`4.39ms` from Seoul, KR
60.32.99.168	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.39ms` from Tokyo, JP
190.204.254.216	AS8048 CANTV Servicios, Venezuela	`16.80ms` from Willemstad, CW
220.198.85.216	AS17816 China Unicom IP network China169 Guangdong province	`5.57ms` from Guangzhou, CN
36.4.131.168	AS4134 CHINANET-BACKBONE	`5.35ms` from Huai'an, CN
69.89.19.152	AS46606 Unified Layer	`1.94ms` from Salt Lake City, US
175.193.212.104	AS4766 Korea Telecom	`1.13ms` from Seoul, KR
211.41.62.200	AS4766 Korea Telecom	`3.15ms` from Seoul, KR
116.231.233.104	AS4812 China Telecom (Group)	`10.47ms` from Shanghai, CN
49.229.16.200	AS135329 Small And Medium Enterprise Development Bank Of Thailand c/o Symphony Communication Public Company Limited	`3.28ms` from Bangkok, TH
160.177.43.184	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`8.76ms` from Casablanca, MA
137.128.189.40	AS668 United States Department of Defense (DoD)	`4.20ms` from Chicago, US
152.115.203.184	AS31027 GlobalConnect A/S	`0.36ms` from Copenhagen, DK
123.1.205.40	AS9269 Hong Kong Broadband Network Ltd.	`0.52ms` from Hong Kong, HK
37.55.211.136	AS6849 JSC "Ukrtelecom"	`9.79ms` from Kyiv, UA
13.43.249.24	AS16509 Amazon.com, Inc.	`0.14ms` from London, GB
79.157.64.24	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.38ms` from Madrid, ES
139.138.72.200	AS30404 Blue Stream	`0.35ms` from Miami, US
24.115.178.232	AS3737 PenTeleData Inc.	`12.04ms` from New York City, US
118.104.189.8	AS18126 Chubu Telecommunications Company, Inc.	`9.16ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f3 -m14 204.100.156.34

traceroute to 204.100.156.34 (204.100.156.34): 14 hops max, 52 byte packets

3 [AS174] 154.24.38.154 2.113 ms

4 [AS174] 154.54.82.141 10.612 ms

5 [AS174] 154.54.45.18 89.34 ms

6 [AS174] 154.54.12.82 57.896 ms

7 *

8 [AS3356] 4.35.156.66 49.836 ms

9 [AS2152] 137.164.11.87 92.866 ms

10 [AS2152] 137.164.1.111 96.443 ms

11 [AS18558] 204.100.158.66 85.779 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Chicago, US

On January 19th 2026

What are IP address ranges?

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