Autonomous System details

AS401851

County of San Diego  ·  ospsandiegocounty.gov

United States
    Stub AS Icon Stub AS

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AS401851 – County of San Diego

Field Value
Country United States
Website ospsandiegocounty.gov
Hosted domains 0
IPv4 addresses 3,584
IPv6 addresses 0
ASN type Government
Registry arin
Allocated 6 months ago on Jul 21, 2025
Updated 6 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

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WHOIS Details

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                                                ASHandle:       AS401851
                                                OrgID:          AS401851
                                                ASName:         AS401851
                                                ASNumber:       AS401851
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There is 1 peer for this ASN.

Peers Name
AS7018 AT&T Enterprises, LLC
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS7018 AT&T Enterprises, LLC
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
209.77.1.2 AS401851 County of San Diego 5.10ms from Los Angeles, US
170.213.133.254 AS401851 County of San Diego 4.14ms from Los Angeles, US
170.213.132.4 AS401851 County of San Diego 4.20ms 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
47.93.69.187 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.64ms from Beijing, CN
178.223.50.75 AS8400 TELEKOM SRBIJA a.d. 3.92ms from Belgrade, RS
91.183.86.91 AS5432 Proximus NV 1.32ms from Brussels, BE
171.240.153.107 AS7552 Viettel Group 1.16ms from Ho Chi Minh City, VN
89.109.63.75 AS12389 PJSC Rostelecom 6.45ms from Kazan, RU
147.227.95.107 AS668 United States Department of Defense (DoD) 1.75ms from Los Angeles, US
107.220.241.123 AS7018 AT&T Enterprises, LLC 3.40ms from Miami, US
89.108.84.235 AS197695 Domain names registrar REG.RU, Ltd 0.85ms from Moscow, RU
217.82.7.235 AS3320 Deutsche Telekom AG 3.97ms from Nuernberg, DE
112.244.167.123 AS4837 CHINA UNICOM China169 Backbone 3.72ms from Qingdao, CN
126.69.2.139 AS17676 SoftBank Corp. 3.97ms from Tokyo, JP
153.176.130.187 AS4713 NTT DOCOMO BUSINESS,Inc. 2.83ms from Tokyo, JP
91.204.140.11 AS30838 Jerzy Krempa "Telpol" PPMUE 7.05ms from Warsaw, PL
222.137.83.219 AS4837 CHINA UNICOM China169 Backbone 1.03ms from Zhengzhou, CN
35.236.245.75 AS396982 Google LLC 0.13ms from Ashburn, US
109.138.161.123 AS5432 Proximus NV 1.84ms from Brussels, BE
111.26.144.75 AS134810 China Mobile Group JiLin communications corporation 3.33ms from Changchun, CN
73.209.226.203 AS7922 Comcast Cable Communications, LLC 8.03ms from Chicago, US
203.253.24.251 AS9318 SK Broadband Co Ltd 1.23ms from Incheon, KR
34.16.187.59 AS396982 Google LLC 0.14ms from Las Vegas, US
185.210.251.75 AS30848 UNIDATA S.p.A. 2.32ms from Milan, IT
178.86.200.107 AS25019 Saudi Telecom Company JSC 3.52ms from Riyadh, SA
143.105.229.59 AS14593 Space Exploration Technologies Corporation 12.95ms from San Jose, US
187.139.206.219 AS8151 UNINET 6.20ms from Santiago de Queretaro, MX
148.101.213.219 AS6400 Compañía Dominicana de Teléfonos S. A. 4.94ms from Santo Domingo, DO

Traceroute

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

$
traceroute -a -n -q1 -f5 170.213.132.1
traceroute to 170.213.132.1 (170.213.132.1): 64 hops max, 52 byte packets
6 *
7 [AS1299] 62.115.45.151 1.766 ms
9 *
10 *
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.

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