156.39.13.0/24

AS21589 · City of San Jose

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Summary

Country	United States
Domain	sanjoseca.gov
ASN	AS21589
Registry	ARIN
ID	SAN-JOSE-NET

WHOIS Details

NetHandle:      NET-156-39-0-0-1
OrgID:          CSJ-1
Parent:         NET-156-0-0-0-0
NetName:        SAN-JOSE-NET
NetRange:       156.39.0.0 - 156.39.255.255
NetType:        allocation
RegDate:        1991-12-09
Updated:        2021-12-14
TechHandle:     DNSAD188-ARIN
Source:         ARIN


OrgID:          CSJ-1
OrgName:        City of San Jose
CanAllocate:    
Street:         200 E. Santa Clara St.
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95113
RegDate:        1991-12-09
Updated:        2019-05-21
OrgAdminHandle: DNSAD188-ARIN
OrgTechHandle:  CASTI255-ARIN
OrgTechHandle:  DNSAD188-ARIN
OrgAbuseHandle: DNSAD188-ARIN
Source:         ARIN


POCHandle:      DNSAD188-ARIN
IsRole:         Y
LastName:       DNS Admins
FirstName:      
Street:         200 E. Santa Clara St.
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95113
RegDate:        2007-01-24
Updated:        2021-05-11
OfficePhone:    +1-408-793-6809
OfficePhone:    +1-408-793-6831
Mailbox:        DNSAdmins@sanjoseca.gov
Mailbox:        NetworkGroup@sanjoseca.gov
Source:         ARIN


POCHandle:      CASTI255-ARIN
IsRole:         N
LastName:       Castillo
FirstName:      James
Street:         200 E. Santa Clara St, 11th Flr
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95113
RegDate:        2017-10-23
Updated:        2020-05-20
OfficePhone:    +1-408-793-6809
Mailbox:        james.castillo@sanjoseca.gov
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 156.39.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
156.39.13.254	AS21589 City of San Jose	`1.04ms` from San Jose, 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
89.247.138.8	AS8881 1&1 Versatel GmbH	`8.18ms` from Berlin, DE
88.245.170.104	AS9121 Turk Telekomunikasyon Anonim Sirketi	`6.70ms` from Bursa, TR
222.211.19.40	AS4134 CHINANET-BACKBONE	`4.79ms` from Chengdu, CN
91.75.51.40	AS15802 Emirates Integrated Telecommunications Company PJSC	`4.08ms` from Dubai, AE
129.15.43.40	AS25776 University of Oklahoma	`7.28ms` from Kansas City, US
46.188.165.8	AS5391 Hrvatski Telekom d.d.	`5.12ms` from Ljubljana, SI
20.204.83.40	AS8075 Microsoft Corporation	`0.15ms` from Lohogaon, IN
86.172.8.136	AS2856 British Telecommunications PLC	`1.83ms` from London, GB
86.148.58.200	AS2856 British Telecommunications PLC	`5.40ms` from London, GB
86.26.1.184	AS5089 Virgin Media Limited	`3.94ms` from London, GB
172.3.184.88	AS7018 AT&T Enterprises, LLC	`2.97ms` from San Jose, US
114.41.177.40	AS3462 Data Communication Business Group	`0.87ms` from Taichung, TW
39.165.117.136	AS24445 Henan Mobile Communications Co.,Ltd	`3.67ms` from Zhengzhou, CN
108.56.178.40	AS701 Verizon Business	`2.08ms` from Ashburn, US
185.180.91.216	AS57389 ZNET Telekom Zrt	`3.18ms` from Budapest, HU
212.108.145.152	AS202254 LIFECELL DIGITAL LTD	`10.72ms` from Denizli, TR
36.138.121.232	AS56040 China Mobile communications corporation	`3.69ms` from Guangzhou, CN
113.160.210.24	AS45899 VNPT Corp	`2.47ms` from Hanoi, VN
62.248.57.40	AS9121 Turk Telekomunikasyon Anonim Sirketi	`15.64ms` from Istanbul, TR
161.132.243.216	AS27843 ON EMPRESAS S.A.C.	`0.26ms` from Lima, PE
93.95.109.40	AS5413 Wavenet Limited	`1.05ms` from London, GB
213.187.10.152	AS39479 NS3 s.r.l.	`3.87ms` from Milan, IT
172.98.161.56	AS5511 Orange S.A.	`0.18ms` from Paris, FR
130.76.180.56	AS196 The Boeing Company	`1.40ms` from Phoenix, US
112.246.97.72	AS4837 CHINA UNICOM China169 Backbone	`10.37ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 -f2 156.39.13.254

traceroute to 156.39.13.254 (156.39.13.254): 64 hops max, 52 byte packets

2 [AS23961] 45.150.242.2 1.007 ms

3 [AS969] 102.130.51.156 343.324 ms

4 [] 103.158.187.30 1.395 ms

5 *

6 [AS6939] 184.104.199.10 34.658 ms

7 *

8 [AS6939] 184.105.65.113 142.566 ms

9 [AS21589] 156.39.13.254 146.256 ms

Measurement taken from

IPinfo ProbeNet in Taipei, TW

On March 13th 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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