204.100.158.0/24

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 204.100.158.0/24

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

Read more

Pingable IPs

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

IP Address	ASN	Details
204.100.158.66	AS18558 Riverside County Office of Education	`2.06ms` from Los Angeles, 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
36.76.217.72	AS7713 PT Telekomunikasi Indonesia	`9.98ms` from Batam, ID
20.10.142.104	AS8075 Microsoft Corporation	`0.20ms` from Boydton, US
216.226.24.200	AS10818 Fullnet Communications	`5.67ms` from Dallas, US
135.236.255.200	AS8075 Microsoft Corporation	`0.23ms` from Dublin, IE
79.232.45.200	AS3320 Deutsche Telekom AG	`4.59ms` from Duesseldorf, DE
136.23.29.8	AS36492 Google, LLC	`0.16ms` from Frankfurt am Main, DE
14.230.46.56	AS45899 VNPT Corp	`2.11ms` from Ho Chi Minh City, VN
89.181.46.120	AS2860 NOS COMUNICACOES, S.A.	`12.38ms` from Lisbon, PT
62.7.39.8	AS2856 British Telecommunications PLC	`1.39ms` from London, GB
86.167.43.40	AS2856 British Telecommunications PLC	`6.70ms` from London, GB
45.137.50.184	AS42228 Brightstar	`0.57ms` from London, GB
176.138.125.152	AS5410 Bouygues Telecom SA	`3.55ms` from Marseille, FR
124.226.157.24	AS4134 CHINANET-BACKBONE	`4.95ms` from Nanning, CN
18.229.150.104	AS16509 Amazon.com, Inc.	`0.13ms` from Osasco, BR
201.191.110.184	AS11830 Instituto Costarricense de Electricidad y Telecom.	`7.08ms` from San Jose, CR
152.70.124.40	AS31898 Oracle Corporation	`0.13ms` from San Jose, US
74.72.131.24	AS12271 Charter Communications Inc	`4.04ms` from Secaucus, US
101.177.107.56	AS1221 Telstra Limited	`14.59ms` from Adelaide, AU
36.25.226.104	AS4134 CHINANET-BACKBONE	`8.08ms` from Ningbo, CN
35.140.72.104	AS33363 Charter Communications, Inc	`9.53ms` from Orlando, US
91.192.220.248	AS39783 Webhuset AS	`1.59ms` from Oslo, NO
88.180.135.88	AS12322 Free SAS	`5.59ms` from Paris, FR
54.166.68.88	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
47.24.211.104	AS20115 Charter Communications LLC	`3.05ms` from St. Louis, US
222.129.195.120	AS4808 China Unicom Beijing Province Network	`3.48ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 -f5 204.100.158.65

traceroute to 204.100.158.65 (204.100.158.65): 64 hops max, 52 byte packets

5 [AS37271] 197.157.67.17 0.316 ms

6 *

7 *

8 *

9 [AS37271] 41.78.188.61 180.255 ms

10 [AS3356] 213.242.115.13 182.935 ms

11 *

12 [AS3356] 4.35.156.66 310.008 ms

13 [AS2152] 137.164.11.87 320.373 ms

14 [AS18558] 204.100.158.65 320.967 ms

Measurement taken from

IPinfo ProbeNet in Johannesburg, ZA

On September 11th 2025

What are IP address ranges?

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