Autonomous System details

AS401851

County of San Diego  ·  ca.gov

United States
    Stub AS Icon Stub AS

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS401851 – County of San Diego

Field Value
Country United States
Website ca.gov
Hosted domains 0
IPv4 addresses 3,584
IPv6 addresses 0
ASN type Government
Registry arin
Allocated 5 months ago on Jul 21, 2025
Updated 5 months ago on Jul 21, 2025

IP Ranges

Netblock Company Num of IPs
170.213.18.0/23 County of San Diego 512
170.213.22.0/23 County of San Diego 512
170.213.2.0/24 County of San Diego 256
170.213.3.0/24 County of San Diego 256
170.213.4.0/24 County of San Diego 256
170.213.5.0/24 County of San Diego 256
170.213.6.0/24 County of San Diego 256
170.213.7.0/24 County of San Diego 256
170.213.131.0/24 County of San Diego 256
170.213.132.0/24 County of San Diego 256
170.213.133.0/24 County of San Diego 256
209.77.1.0/24 County of San Diego 256

There are no known IPv6 addresses belonging to this network

Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details

Join for free to view WHOIS details › 

                                                ASHandle:       AS401851
                                                OrgID:          AS401851
                                                ASName:         AS401851
                                                ASNumber:       AS401851
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.
IP WHOIS API & Database

Hosted Domains

There are no domains currently hosted on this ASN.

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity
Hosted Domains API & Database

Peers

There is 1 peer for this ASN.

Peers Name
AS7018 AT&T Enterprises, LLC
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

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS7018 AT&T Enterprises, LLC
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

Downstreams

There are no downstreams for this ASN.

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

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

IP Address ASN Details
170.213.132.4 AS401851 County of San Diego 4.79ms from Los Angeles, US
170.213.133.254 AS401851 County of San Diego 4.70ms from Los Angeles, US
209.77.1.2 AS401851 County of San Diego 5.68ms 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
75.242.159.235 AS6167 Verizon Business 16.70ms from Chicago, US
12.12.190.187 AS7018 AT&T Enterprises, LLC 8.52ms from Dallas, US
88.153.77.123 AS3209 Vodafone GmbH 9.88ms from Frankfurt am Main, DE
14.232.220.155 AS45899 VNPT Corp 1.06ms from Hanoi, VN
94.133.223.171 AS2860 NOS COMUNICACOES, S.A. 12.36ms from Lisbon, PT
68.7.165.171 AS22773 Cox Communications Inc. 7.30ms from Los Angeles, US
105.168.172.91 AS37119 UNITEL SA 0.79ms from Luanda, AO
189.136.254.107 AS8151 UNINET 3.03ms from Mexico City, MX
79.37.183.107 AS3269 Telecom Italia S.p.A. 4.27ms from Rome, IT
190.47.119.155 AS22047 VTR BANDA ANCHA S.A. 14.60ms from Santiago, CL
13.250.250.43 AS16509 Amazon.com, Inc. 0.11ms from Singapore, SG
87.241.116.187 AS29518 Bredband2 AB 16.31ms from Stockholm, SE
69.195.173.139 AS13414 Twitter Inc. 0.45ms from Atlanta, US
84.90.29.43 AS13156 NOWO COMMUNICATIONS, S.A. 7.27ms from Braga, PT
24.55.16.91 AS11427 Charter Communications Inc 11.51ms from Dallas, US
184.164.102.91 AS10835 Visionary Communications LLC 3.08ms from Denver, US
183.156.108.59 AS4134 CHINANET-BACKBONE 5.73ms from Hangzhou, CN
79.78.78.11 AS13285 TalkTalk Communications Limited 3.61ms from London, GB
93.65.42.171 AS30722 Vodafone Italia S.p.A. 11.59ms from Milan, IT
126.80.77.43 AS17676 SoftBank Corp. 2.44ms from Osaka, JP
54.232.30.155 AS16509 Amazon.com, Inc. 0.12ms from Osasco, BR
23.217.135.11 AS16625 Akamai Technologies, Inc. 0.30ms from Paris, FR
195.144.107.155 AS13036 T-Mobile Czech Republic a.s. 0.46ms from Prague, CZ
39.79.246.107 AS4837 CHINA UNICOM China169 Backbone 4.91ms from Qingdao, CN
37.232.158.59 AS12714 PJSC MegaFon 10.77ms from Samara, RU

Traceroute

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

$
traceroute -a -n -q1 -f3 209.77.1.2
traceroute to 209.77.1.2 (209.77.1.2): 64 hops max, 52 byte packets
3 [] 156.146.32.182 0.796 ms
4 *
5 [AS174] 154.54.25.149 1.577 ms
6 [AS174] 154.54.3.70 1.853 ms
8 [AS7018] 32.130.90.120 1.036 ms
10 [AS401851] 209.77.1.2 6.135 ms
Measurement taken from IPinfo ProbeNet in Los Angeles, 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 AS401851 at robtex.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs