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 25
IPv4 addresses 71,936
IPv6 addresses 79,228,162,514,264,338,000,000,000,000
ASN type Education
Registry arin
Allocated 26 years ago on Sep 12, 2000
Updated 6 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
204.100.242.0/24 County of Riverside 256
204.100.243.0/24 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 25 domain names hosted across 7 IP addresses on this ASN.

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IP Address Domain Domains on this IP
204.100.65.93 ██████████ 4
204.100.155.40 ██████████ 2
204.26.34.4 ██████████ 2
204.100.155.42 ██████████ 1
204.100.65.241 ██████████ 1
204.100.230.220 ██████████ 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
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ASN API & Database

Pingable IPs

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

IP Address ASN Details
204.100.189.65 AS18558 Riverside County Office of Education 1.90ms from Los Angeles, US
204.100.204.65 AS18558 Riverside County Office of Education 2.03ms from Los Angeles, US
2607:f708::1 AS18558 Riverside County Office of Education 1.94ms from Los Angeles, US
204.100.243.1 AS18558 Riverside County Office of Education 5.48ms from Los Angeles, US
204.100.229.65 AS18558 Riverside County Office of Education 2.01ms from Los Angeles, US
204.100.119.65 AS18558 Riverside County Office of Education 1.95ms from Los Angeles, US
204.100.124.65 AS18558 Riverside County Office of Education 1.90ms from Los Angeles, US
204.100.223.1 AS18558 Riverside County Office of Education 9.26ms from Los Angeles, US
204.100.150.1 AS18558 Riverside County Office of Education 1.98ms from Los Angeles, US
204.100.171.0 AS18558 Riverside County Office of Education 3.56ms from Los Angeles, US
204.100.209.65 AS18558 Riverside County Office of Education 1.97ms from Los Angeles, US
204.100.114.65 AS18558 Riverside County Office of Education 8.08ms from Los Angeles, US
204.100.129.65 AS18558 Riverside County Office of Education 1.98ms from Los Angeles, US
204.100.242.1 AS18558 Riverside County Office of Education 10.53ms from Los Angeles, US
204.100.194.1 AS18558 Riverside County Office of Education 11.06ms from Los Angeles, US
204.100.149.1 AS18558 Riverside County Office of Education 9.25ms from Los Angeles, US
204.100.158.65 AS18558 Riverside County Office of Education 1.88ms from Los Angeles, US
204.100.255.241 AS18558 Riverside County Office of Education 1.95ms from Los Angeles, US
204.100.235.1 AS18558 Riverside County Office of Education 8.73ms from Los Angeles, US
204.100.105.1 AS18558 Riverside County Office of Education 1.96ms from Los Angeles, US
204.100.134.225 AS18558 Riverside County Office of Education 1.91ms from Los Angeles, US
204.100.169.57 AS18558 Riverside County Office of Education 1.94ms from Los Angeles, US
204.100.157.1 AS18558 Riverside County Office of Education 2.40ms from Los Angeles, US
204.100.180.1 AS18558 Riverside County Office of Education 1.93ms from Los Angeles, US
204.100.136.2 AS18558 Riverside County Office of Education 2.66ms 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
89.122.198.254 AS9050 Orange Romania S.A. 0.32ms from Bucharest, RO
174.34.135.190 AS394380 Leaseweb USA, Inc. 0.22ms from Dallas, US
183.232.131.142 AS9808 China Mobile Communications Group Co., Ltd. 5.29ms from Guangzhou, CN
2.205.114.62 AS3209 Vodafone GmbH 7.10ms from Hamburg, DE
98.195.163.142 AS7922 Comcast Cable Communications, LLC 8.22ms from Houston, US
75.19.164.190 AS7018 AT&T Enterprises, LLC 19.34ms from Los Angeles, US
184.97.53.254 AS19901 Brightspeed 2.81ms from Minneapolis, US
74.76.171.62 AS11351 Charter Communications Inc 10.81ms from New York City, US
167.20.127.254 AS21928 T-Mobile USA, Inc. 12.78ms from New York City, US
92.124.149.78 AS12389 PJSC Rostelecom 8.07ms from Novosibirsk, RU
54.174.21.254 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
157.245.231.190 AS14061 DigitalOcean, LLC 0.29ms from San Jose, US
52.9.208.254 AS16509 Amazon.com, Inc. 0.13ms from San Jose, US
104.248.98.78 AS14061 DigitalOcean, LLC 0.13ms from Singapore, SG
203.69.162.254 AS3462 Data Communication Business Group 4.71ms from Taichung, TW
120.106.178.254 AS1659 Taiwan Academic Network (TANet) Information Center 2.64ms from Taipei, TW
131.247.61.254 AS5661 UNIVERSITY OF SOUTH FLORIDA 2.93ms from Tampa, US
202.211.128.62 AS4725 SoftBank Corp. 3.21ms from Tokyo, JP
64.231.30.238 AS577 Bell Canada 5.59ms from Toronto, CA
95.160.223.190 AS29314 VECTRA S.A. 5.96ms from Warsaw, PL
178.83.213.94 AS203048 BritNeighbour Net Ltd 0.35ms from Amsterdam, NL
40.74.40.14 AS8075 Microsoft Corporation 0.15ms from Amsterdam, NL
73.250.69.126 AS7922 Comcast Cable Communications, LLC 7.05ms from Ashburn, US
71.7.107.78 AS7029 Windstream Communications LLC 7.52ms from Atlanta, US
130.104.252.222 AS2611 BELNET 1.17ms from Brussels, BE

Traceroute

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

$
traceroute -a -n -q1 -f2 -m5 204.26.39.211
traceroute to 204.26.39.211 (204.26.39.211): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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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