204.100.16.0/21

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 204.100.16.0/21

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
184.106.137.149	AS19994 Rackspace Hosting	`1.21ms` from Chicago, US
49.244.138.85	AS23752 Nepal Telecommunications Corporation, Internet Services,	`2.10ms` from Kathmandu, NP
154.71.138.133	AS36907 TV CABO ANGOLA LDA	`7.92ms` from Luanda, AO
120.156.157.53	AS1221 Telstra Limited	`5.05ms` from Melbourne, AU
87.150.162.117	AS3320 Deutsche Telekom AG	`4.68ms` from Nuernberg, DE
60.98.133.245	AS17676 SoftBank Corp.	`3.71ms` from Osaka, JP
191.123.236.181	AS26615 TIM S/A	`18.48ms` from Osasco, BR
69.168.124.85	AS13857 Online Northwest	`2.21ms` from Portland, US
31.189.233.133	AS24608 WIND TRE S.P.A.	`11.28ms` from Rome, IT
177.62.36.101	AS26599 TELEFÔNICA BRASIL S.A	`13.48ms` from Sao Paulo, BR
112.165.188.21	AS4766 Korea Telecom	`3.33ms` from Seoul, KR
118.222.153.133	AS9318 SK Broadband Co Ltd	`5.67ms` from Seoul, KR
90.226.192.53	AS3301 Telia Company AB	`0.70ms` from Stockholm, SE
217.169.227.213	AS15466 Commando Materieel en IT	`15.51ms` from Amsterdam, NL
51.222.10.213	AS16276 OVH SAS	`0.09ms` from Beauharnois, CA
216.220.51.149	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`1.41ms` from Calgary, CA
75.182.43.21	AS11426 Charter Communications Inc	`10.30ms` from Charlotte, US
8.137.170.101	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.10ms` from Chengdu, CN
54.216.173.53	AS16509 Amazon.com, Inc.	`0.29ms` from Dublin, IE
93.223.172.133	AS3320 Deutsche Telekom AG	`1.39ms` from Frankfurt am Main, DE
171.245.115.85	AS7552 Viettel Group	`4.85ms` from Hanoi, VN
63.156.201.101	AS209 CenturyLink Communications, LLC	`3.75ms` from Los Angeles, US
35.183.250.133	AS16509 Amazon.com, Inc.	`0.16ms` from Montreal, CA
148.137.130.101	AS7150 Commonwealth University of Pennsylvania	`13.54ms` from Morris Plains, US
211.15.172.133	AS2516 KDDI CORPORATION	`1.19ms` 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 -m13 204.100.20.102

traceroute to 204.100.20.102 (204.100.20.102): 13 hops max, 52 byte packets

1 [AS15169] 66.249.94.36 58.01 ms

2 *

3 [AS2152] 137.164.11.83 72.506 ms

4 [AS2152] 137.164.11.85 72.657 ms

5 [AS2152] 137.164.11.41 72.666 ms

6 [AS2152] 137.164.14.205 72.559 ms

7 [AS2152] 137.164.13.38 72.118 ms

8 [AS18558] 204.100.255.14 72.768 ms

9 [AS18558] 204.100.255.13 72.709 ms

10 [AS18558] 204.100.255.14 73.088 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Moncks Corner, US

On December 28th 2025

What are IP address ranges?

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