209.242.170.0/24

AS33051 · SAN YSIDRO SCHOOL DISTRICT

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Summary

Country	United States
Domain	sysd.k12.ca.us
ASN	AS33051
Registry	ARIN
ID	SAN-YSIDRO-SD-COXSD01

WHOIS Details

NetHandle:      NET-209-242-170-0-1
OrgID:          C01124857
Parent:         NET-209-242-128-0-1
NetName:        SAN-YSIDRO-SD-COXSD01
NetRange:       209.242.170.0 - 209.242.170.255
NetType:        reassignment
RegDate:        2005-06-29
Updated:        2005-06-29
Source:         ARIN


OrgID:          C01124857
OrgName:        SAN YSIDRO SCHOOL DISTRICT
CanAllocate:    
Street:         4350 OTAY MESA ROAD
City:           SAN YSIDRO
State/Prov:     CA
Country:        US
PostalCode:     92173
RegDate:        2005-06-29
Updated:        2011-03-19
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 209.242.0.0/16

Range	ASN	Company	Num of IPs
209.242.0.0/18	AS10692	DLS Internet Services, Inc	16,384
209.242.64.0/18	AS62	CyrusOne LLC	16,384
209.242.0.0/18	AS13950	DLS Internet Services, Inc	16,384
209.242.0.0/18	AS400921	DLS Internet Services, Inc	16,384
209.242.224.0/20	AS26785	Netwurx LLC	4,096
209.242.176.0/20	AS46792	Paragould Municipal Utilities	4,096
209.242.156.0/23	AS46268	San Diego Padres	512
209.242.69.0/24	AS26646	Travel Click	256
209.242.70.0/24	AS26646	TravelCLICK Inc.	256
209.242.77.0/24	AS26646	TravelCLICK Inc.	256
209.242.218.0/24	AS203020	Estrada Nacional	256
209.242.94.0/24	AS36328	CalTech	256
209.242.39.0/24	AS397975	REALNETS / Chicago COLO	256
209.242.217.0/24	AS203020	Private Customer	256
209.242.137.0/24	AS63182	California Western School of Law	256
209.242.50.0/24	AS10692	Hodgson Consulting / CHI COL	256
209.242.74.0/24	AS62	UniRush LLC	256
209.242.128.0/24	AS22773	Cox Communications	256
209.242.221.0/24	AS203020	NOC	256

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

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

IP Address	ASN	Details
209.242.170.222	AS33051 SAN YSIDRO SCHOOL DISTRICT	`5.47ms` 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
170.9.214.72	AS31898 Oracle Corporation	`0.40ms` from Ashburn, US
111.193.242.24	AS4808 China Unicom Beijing Province Network	`3.78ms` from Beijing, CN
91.180.71.88	AS5432 Proximus NV	`0.93ms` from Brussels, BE
64.236.12.8	AS8075 Microsoft Corporation	`0.15ms` from Des Moines, US
80.141.209.40	AS3320 Deutsche Telekom AG	`4.72ms` from Frankfurt am Main, DE
45.12.196.72	AS31898 Oracle Corporation	`0.23ms` from London, GB
90.192.230.168	AS5607 Sky UK Limited	`3.28ms` from London, GB
179.12.51.248	AS27831 Colombia Móvil	`13.86ms` from Medellin, CO
72.226.41.216	AS12271 Charter Communications Inc	`2.60ms` from New York City, US
133.123.237.72	AS7522 STNet, Incorporated	`4.93ms` from Osaka, JP
129.219.70.232	AS2900 Arizona Tri University Network	`0.88ms` from Phoenix, US
177.57.228.248	AS22085 Claro S/A	`16.80ms` from Rio de Janeiro, BR
206.116.166.232	AS852 TELUS Communications Inc.	`4.06ms` from Seattle, US
222.110.197.56	AS4766 Korea Telecom	`1.31ms` from Seoul, KR
114.203.136.152	AS9318 SK Broadband Co Ltd	`5.47ms` from Seoul, KR
180.92.51.152	AS4721 JCOM Co., Ltd.	`11.53ms` from Tokyo, JP
78.56.33.88	AS8764 Telia Lietuva, AB	`1.14ms` from Vilnius, LT
31.216.202.216	AS5391 Hrvatski Telekom d.d.	`15.07ms` from Zagreb, HR
222.141.34.168	AS4837 CHINA UNICOM China169 Backbone	`2.29ms` from Zhengzhou, CN
66.189.73.152	AS20115 Charter Communications LLC	`9.23ms` from Ashburn, US
75.27.237.56	AS7018 AT&T Enterprises, LLC	`1.11ms` from Atlanta, US
41.39.76.184	AS8452 TE-AS	`6.30ms` from Cairo, EG
49.51.138.152	AS132203 Tencent Building, Kejizhongyi Avenue	`0.34ms` from Frankfurt am Main, DE
86.183.108.88	AS2856 British Telecommunications PLC	`7.58ms` from London, GB
47.51.38.184	AS20115 Charter Communications LLC	`6.96ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f2 209.242.170.222

traceroute to 209.242.170.222 (209.242.170.222): 64 hops max, 52 byte packets

2 [AS3257] 209.120.128.65 5.448 ms

3 [AS3257] 89.149.187.102 0.974 ms

4 [AS3257] 209.120.139.38 0.547 ms

5 [AS22773] 68.1.0.205 4.382 ms

6 *

7 [AS22773] 98.174.128.75 5.348 ms

8 [AS22773] 98.174.128.75 5.669 ms

9 [AS33051] 209.242.170.222 5.719 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On January 19th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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