204.100.166.0/24

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 204.100.166.0/24

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
145.128.208.8	AS28685 Routit BV	`0.46ms` from Amsterdam, NL
54.236.86.8	AS14618 Amazon.com, Inc.	`0.59ms` from Ashburn, US
129.80.95.120	AS31898 Oracle Corporation	`0.39ms` from Ashburn, US
47.134.145.88	AS20115 Charter Communications LLC	`10.76ms` from Atlanta, US
50.112.106.216	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
91.9.6.168	AS3320 Deutsche Telekom AG	`6.41ms` from Frankfurt am Main, DE
171.233.251.104	AS7552 Viettel Group	`4.40ms` from Ho Chi Minh City, VN
157.22.91.184	AS44559 IT HOSTLINE LTD	`0.20ms` from Hong Kong, HK
98.70.208.248	AS8075 Microsoft Corporation	`0.15ms` from Lohogaon, IN
80.30.136.8	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.65ms` from Madrid, ES
220.235.155.24	AS7545 TPG Telecom Limited	`1.47ms` from Melbourne, AU
119.30.13.72	AS18260 EHIME CATV CO.,LTD.	`6.09ms` from Osaka, JP
210.92.91.216	AS3786 LG DACOM Corporation	`1.65ms` from Seoul, KR
183.113.47.56	AS4766 Korea Telecom	`1.97ms` from Seoul, KR
193.82.162.72	AS138384 Rakuten Mobile Network, Inc.	`1.48ms` from Tokyo, JP
34.104.144.232	AS396982 Google LLC	`0.15ms` from Tokyo, JP
79.191.41.248	AS5617 Orange Polska Spolka Akcyjna	`3.83ms` from Warsaw, PL
54.158.54.8	AS14618 Amazon.com, Inc.	`0.56ms` from Ashburn, US
223.27.115.104	AS269822 COLOMBIA MAS TV S.A.S	`6.14ms` from Bogota, CO
109.58.197.120	AS44034 Hi3G Access AB	`7.11ms` from Copenhagen, DK
75.85.103.56	AS20001 Charter Communications Inc	`8.91ms` from Honolulu, US
119.154.27.24	AS17557 Pakistan Telecommunication Company Limited	`1.65ms` from Islamabad, PK
176.39.8.216	AS202103 Lanet Network Ltd	`5.30ms` from Kyiv, UA
66.103.202.8	AS35916 MULTACOM CORPORATION	`0.26ms` from Los Angeles, US
83.33.181.232	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.45ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f4 -m16 204.100.166.104

traceroute to 204.100.166.104 (204.100.166.104): 16 hops max, 52 byte packets

4 [AS395954] 172.255.243.1 6.209 ms

5 [AS9002] 87.245.241.66 13.371 ms

6 [AS9002] 87.245.232.234 14.682 ms

7 *

8 *

9 [AS3356] 4.35.156.66 193.53 ms

10 *

11 [AS2152] 137.164.11.83 177.453 ms

12 [AS2152] 137.164.3.17 181.853 ms

13 [AS18558] 204.100.254.229 172.906 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Bologna, IT

On December 28th 2025

What are IP address ranges?

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