Autonomous System details

AS18558

Riverside County Office of Education  ·  rcoe.us

United States

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AS18558 – Riverside County Office of Education

Field Value
Country United States
Website rcoe.us
Hosted domains 28
IPv4 addresses 71,936
IPv6 addresses 79,228,162,514,264,337,593,543,950,336
ASN type Education
Registry arin
Allocated 25 years ago on Sep 12, 2000
Updated 2 months ago on Oct 20, 2025

IP Ranges

Netblock Company Num of IPs
204.100.0.0/16 County of Riverside 65,536
204.26.32.0/20 Alvord Unified School District 4,096
204.26.48.0/21 Alvord Unified School District 2,048
204.100.8.0/21 County of Riverside 2,048
204.100.16.0/21 County of Riverside 2,048
204.100.32.0/22 County of Riverside 1,024
204.100.68.0/22 County of Riverside 1,024
204.100.136.0/22 County of Riverside 1,024
204.26.56.0/24 Alvord Unified School District 256
204.100.38.0/24 County of Riverside 256
204.100.40.0/24 County of Riverside 256
204.100.41.0/24 County of Riverside 256
204.100.43.0/24 County of Riverside 256
204.100.44.0/24 County of Riverside 256
204.100.56.0/24 County of Riverside 256
204.100.58.0/24 County of Riverside 256
204.100.59.0/24 County of Riverside 256
204.100.60.0/24 County of Riverside 256
204.100.61.0/24 County of Riverside 256
204.100.65.0/24 County of Riverside 256
204.100.66.0/24 County of Riverside 256
204.100.67.0/24 County of Riverside 256
204.100.72.0/24 County of Riverside 256
204.100.73.0/24 County of Riverside 256
204.100.74.0/24 County of Riverside 256
204.100.75.0/24 County of Riverside 256
204.100.76.0/24 County of Riverside 256
204.100.77.0/24 County of Riverside 256
204.100.78.0/24 County of Riverside 256
204.100.79.0/24 County of Riverside 256
204.100.80.0/24 County of Riverside 256
204.100.81.0/24 County of Riverside 256
204.100.82.0/24 County of Riverside 256
204.100.87.0/24 County of Riverside 256
204.100.88.0/24 County of Riverside 256
204.100.89.0/24 County of Riverside 256
204.100.90.0/24 County of Riverside 256
204.100.91.0/24 County of Riverside 256
204.100.92.0/24 County of Riverside 256
204.100.93.0/24 County of Riverside 256
204.100.94.0/24 County of Riverside 256
204.100.97.0/24 County of Riverside 256
204.100.98.0/24 County of Riverside 256
204.100.99.0/24 County of Riverside 256
204.100.103.0/24 County of Riverside 256
204.100.105.0/24 County of Riverside 256
204.100.106.0/24 County of Riverside 256
204.100.114.0/24 County of Riverside 256
204.100.115.0/24 County of Riverside 256
204.100.116.0/24 County of Riverside 256
204.100.117.0/24 County of Riverside 256
204.100.118.0/24 County of Riverside 256
204.100.119.0/24 County of Riverside 256
204.100.120.0/24 County of Riverside 256
204.100.121.0/24 County of Riverside 256
204.100.122.0/24 County of Riverside 256
204.100.123.0/24 County of Riverside 256
204.100.124.0/24 County of Riverside 256
204.100.125.0/24 County of Riverside 256
204.100.126.0/24 County of Riverside 256
204.100.127.0/24 County of Riverside 256
204.100.128.0/24 County of Riverside 256
204.100.129.0/24 County of Riverside 256
204.100.130.0/24 County of Riverside 256
204.100.131.0/24 County of Riverside 256
204.100.132.0/24 County of Riverside 256
204.100.133.0/24 County of Riverside 256
204.100.134.0/24 County of Riverside 256
204.100.149.0/24 County of Riverside 256
204.100.150.0/24 County of Riverside 256
204.100.151.0/24 County of Riverside 256
204.100.152.0/24 County of Riverside 256
204.100.153.0/24 County of Riverside 256
204.100.154.0/24 County of Riverside 256
204.100.155.0/24 County of Riverside 256
204.100.156.0/24 County of Riverside 256
204.100.157.0/24 County of Riverside 256
204.100.158.0/24 County of Riverside 256
204.100.159.0/24 County of Riverside 256
204.100.164.0/24 County of Riverside 256
204.100.165.0/24 County of Riverside 256
204.100.166.0/24 County of Riverside 256
204.100.167.0/24 County of Riverside 256
204.100.168.0/24 County of Riverside 256
204.100.169.0/24 County of Riverside 256
204.100.170.0/24 County of Riverside 256
204.100.171.0/24 County of Riverside 256
204.100.172.0/24 County of Riverside 256
204.100.173.0/24 County of Riverside 256
204.100.174.0/24 County of Riverside 256
204.100.175.0/24 County of Riverside 256
204.100.180.0/24 County of Riverside 256
204.100.181.0/24 County of Riverside 256
204.100.182.0/24 County of Riverside 256
204.100.183.0/24 County of Riverside 256
204.100.184.0/24 County of Riverside 256
204.100.185.0/24 County of Riverside 256
204.100.186.0/24 County of Riverside 256
204.100.187.0/24 County of Riverside 256
204.100.188.0/24 County of Riverside 256
204.100.189.0/24 County of Riverside 256
204.100.190.0/24 County of Riverside 256
204.100.191.0/24 County of Riverside 256
204.100.192.0/24 County of Riverside 256
204.100.193.0/24 County of Riverside 256
204.100.194.0/24 County of Riverside 256
204.100.200.0/24 County of Riverside 256
204.100.201.0/24 County of Riverside 256
204.100.202.0/24 County of Riverside 256
204.100.203.0/24 County of Riverside 256
204.100.204.0/24 County of Riverside 256
204.100.205.0/24 County of Riverside 256
204.100.206.0/24 County of Riverside 256
204.100.207.0/24 County of Riverside 256
204.100.208.0/24 County of Riverside 256
204.100.209.0/24 County of Riverside 256
204.100.210.0/24 County of Riverside 256
204.100.211.0/24 County of Riverside 256
204.100.212.0/24 County of Riverside 256
204.100.213.0/24 County of Riverside 256
204.100.214.0/24 County of Riverside 256
204.100.220.0/24 County of Riverside 256
204.100.223.0/24 County of Riverside 256
204.100.224.0/24 County of Riverside 256
204.100.225.0/24 County of Riverside 256
204.100.226.0/24 County of Riverside 256
204.100.228.0/24 County of Riverside 256
204.100.229.0/24 County of Riverside 256
204.100.230.0/24 County of Riverside 256
204.100.231.0/24 County of Riverside 256
204.100.232.0/24 County of Riverside 256
204.100.233.0/24 County of Riverside 256
204.100.234.0/24 County of Riverside 256
204.100.235.0/24 County of Riverside 256
204.100.236.0/24 County of Riverside 256
204.100.237.0/24 County of Riverside 256
204.100.238.0/24 County of Riverside 256
204.100.239.0/24 County of Riverside 256

Netblock Company
2607:f708::/32 Riverside County Office of Education
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WHOIS Details

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                                                ASHandle:       AS18558
                                                OrgID:          AS18558
                                                ASName:         AS18558
                                                ASNumber:       AS18558
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 28 domain names hosted across 8 IP addresses on this ASN.

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IP Address Domain Domains on this IP
204.100.65.93 ██████████ 20
204.100.155.40 ██████████ 2
204.26.34.4 ██████████ 2
204.100.67.3 ██████████ 1
204.100.220.2 ██████████ 1
204.100.230.220 ██████████ 1
204.100.155.42 ██████████ 1
204.100.65.241 ██████████ 1

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Peers

There are 3 peers for this ASN.

Peers Name
AS2152 CENIC
AS395643 Corona-Norco Unified School District
AS401974 Val Verde Unified School District
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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS2152 CENIC
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ASN API & Database

Downstreams

There are 2 downstreams for this ASN.

Downstreams Name
AS395643 Corona-Norco Unified School District
AS401974 Val Verde Unified School District
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

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

IP Address ASN Details
204.100.194.1 AS18558 Riverside County Office of Education 10.78ms from Los Angeles, US
204.100.229.65 AS18558 Riverside County Office of Education 1.95ms from Los Angeles, US
204.100.254.234 AS18558 Riverside County Office of Education 1.84ms from Los Angeles, US
204.100.184.40 AS18558 Riverside County Office of Education 3.03ms from Los Angeles, US
204.100.105.1 AS18558 Riverside County Office of Education 1.96ms from Los Angeles, US
204.100.235.246 AS18558 Riverside County Office of Education 5.66ms from Los Angeles, US
204.100.119.65 AS18558 Riverside County Office of Education 2.03ms from Los Angeles, US
204.100.134.225 AS18558 Riverside County Office of Education 1.93ms from Los Angeles, US
204.100.233.66 AS18558 Riverside County Office of Education 1.97ms from Los Angeles, US
204.100.157.11 AS18558 Riverside County Office of Education 2.42ms from Los Angeles, US
204.100.225.1 AS18558 Riverside County Office of Education 9.34ms from Los Angeles, US
204.100.136.1 AS18558 Riverside County Office of Education 1.99ms from Los Angeles, US
204.100.192.21 AS18558 Riverside County Office of Education 10.45ms from Los Angeles, US
204.100.125.2 AS18558 Riverside County Office of Education 9.77ms from Los Angeles, US
204.100.129.65 AS18558 Riverside County Office of Education 1.94ms from Los Angeles, US
204.100.114.65 AS18558 Riverside County Office of Education 8.08ms from Los Angeles, US
204.100.155.133 AS18558 Riverside County Office of Education 2.27ms from Los Angeles, US
204.100.189.66 AS18558 Riverside County Office of Education 2.01ms from Los Angeles, US
204.100.137.36 AS18558 Riverside County Office of Education 2.03ms from Los Angeles, US
204.100.236.115 AS18558 Riverside County Office of Education 5.52ms from Los Angeles, US
204.100.252.197 AS18558 Riverside County Office of Education 4.26ms from Los Angeles, US
204.100.255.241 AS18558 Riverside County Office of Education 1.97ms from Los Angeles, US
204.100.37.129 AS18558 Riverside County Office of Education 8.15ms from Los Angeles, US
204.100.224.2 AS18558 Riverside County Office of Education 1.69ms from Los Angeles, US
204.100.180.1 AS18558 Riverside County Office of Education 2.01ms 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
134.209.135.30 AS14061 DigitalOcean, LLC 0.16ms from Amsterdam, NL
12.90.248.238 AS7018 AT&T Enterprises, LLC 2.05ms from Ashburn, US
97.230.216.30 AS6167 Verizon Business 16.71ms from Atlanta, US
167.114.204.158 AS16276 OVH SAS 0.10ms from Beauharnois, CA
2.242.17.62 AS6805 Telefonica Germany GmbH & Co.OHG 3.04ms from Berlin, DE
75.144.195.254 AS7922 Comcast Cable Communications, LLC 10.62ms from Boston, US
130.104.252.222 AS2611 BELNET 1.21ms from Brussels, BE
188.173.133.174 AS48161 NEXTGEN COMMUNICATIONS SRL 4.20ms from Bucharest, RO
186.5.229.78 AS52372 COOPERATIVA ELECTRICA DE GENERAL DEHEZA LTDA. 7.82ms from Buenos Aires, AR
173.161.73.206 AS7922 Comcast Cable Communications, LLC 6.04ms from Chicago, US
65.101.235.222 AS209 CenturyLink Communications, LLC 3.03ms from Denver, US
98.43.52.30 AS7922 Comcast Cable Communications, LLC 1.67ms from Denver, US
14.198.161.190 AS9269 Hong Kong Broadband Network Ltd. 1.07ms from Hong Kong, HK
99.48.32.254 AS7018 AT&T Enterprises, LLC 3.15ms from Los Angeles, US
92.187.75.254 AS12479 Orange Espagne SA 7.55ms from Madrid, ES
96.65.179.158 AS7922 Comcast Cable Communications, LLC 5.86ms from Miami, US
172.254.161.46 AS12271 Charter Communications Inc 1.38ms from New York City, US
210.228.81.254 AS2516 KDDI CORPORATION 2.56ms from Osaka, JP
78.155.146.254 AS15557 Societe Francaise Du Radiotelephone - SFR SA 4.04ms from Paris, FR
94.131.97.206 AS209847 WorkTitans B.V. 0.16ms from Prague, CZ
88.103.91.46 AS5610 O2 Czech Republic, a.s. 8.67ms from Prague, CZ
98.217.234.174 AS7922 Comcast Cable Communications, LLC 7.11ms from Providence, US
112.248.146.62 AS4837 CHINA UNICOM China169 Backbone 9.26ms from Qingdao, CN
211.180.154.78 AS3786 LG DACOM Corporation 2.59ms from Seoul, KR
220.124.95.254 AS4766 Korea Telecom 4.61ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f3 -m15 204.100.200.10
traceroute to 204.100.200.10 (204.100.200.10): 15 hops max, 52 byte packets
3 [AS749] 11.207.214.178 1.723 ms
4 *
5 *
6 *
7 [AS3356] 4.35.156.66 61.575 ms
8 [AS2152] 137.164.11.87 64.732 ms
9 [AS2152] 137.164.1.111 64.447 ms
10 [AS18558] 204.100.204.66 64.933 ms
11 [AS18558] 204.100.204.65 74.685 ms
12 [AS18558] 204.100.204.66 65.202 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Ashburn, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS18558 at robtex.

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