156.39.15.0/24

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:        [email protected]
Mailbox:        [email protected]
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:        [email protected]
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

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

IP Address	ASN	Details
156.39.15.30	AS21589 City of San Jose	`0.60ms` 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
98.64.210.232	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
204.9.248.88	AS26747 Phillips County Telephone Company	`7.01ms` from Denver, US
40.172.252.120	AS16509 Amazon.com, Inc.	`0.11ms` from Dubai, AE
90.132.254.248	AS1257 Tele2 Sverige AB	`3.87ms` from Falkenberg, SE
156.230.103.120	AS136907 HUAWEI CLOUDS	`1.11ms` from Hong Kong, HK
23.50.244.232	AS16625 Akamai Technologies, Inc.	`0.24ms` from Mumbai, IN
116.222.75.216	AS9824 JCOM Co., Ltd.	`8.54ms` from Osaka, JP
90.45.26.248	AS3215 Orange S.A.	`6.22ms` from Paris, FR
151.127.49.232	AS35540 OVH SAS	`5.78ms` from Paris, FR
176.170.95.8	AS5410 Bouygues Telecom SA	`2.04ms` from Paris, FR
112.237.59.136	AS4837 CHINA UNICOM China169 Backbone	`10.07ms` from Qingdao, CN
221.149.140.24	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
147.47.212.248	AS9488 Seoul National University	`0.78ms` from Seoul, KR
194.8.4.248	AS198283 Apis Europe JSC	`0.70ms` from Sofia, BG
187.57.158.72	AS27699 TELEFÔNICA BRASIL S.A	`2.03ms` from São Paulo, BR
220.132.145.72	AS3462 Data Communication Business Group	`1.99ms` from Taipei, TW
24.149.28.248	AS13855 The Municipal Communications Utility of the City of Cedar Falls, Iowa	`6.85ms` from Chicago, US
103.172.78.56	AS135901 Phuong Dong technology solution company limited	`1.49ms` from Ho Chi Minh City, VN
175.141.242.136	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`1.69ms` from Kuala Lumpur, MY
45.70.246.248	AS267598 W-COM Internet	`2.27ms` from Novo Hamburgo, BR
203.136.147.88	AS2518 BIGLOBE Inc.	`5.07ms` from Osaka, JP
5.29.73.152	AS12849 Hot-Net internet services Ltd.	`4.10ms` from Petaẖ Tiqva, IL
39.91.1.8	AS4837 CHINA UNICOM China169 Backbone	`5.84ms` from Qingdao, CN
179.153.104.168	AS28573 Claro NXT Telecomunicacoes Ltda	`6.59ms` from Sao Paulo, BR
50.29.133.72	AS3737 PenTeleData Inc.	`12.63ms` from Secaucus, 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 156.39.15.2

traceroute to 156.39.15.2 (156.39.15.2): 64 hops max, 52 byte packets

2 [] 91.200.241.86 0.439 ms

3 [] 206.223.116.37 0.701 ms

4 [AS6939] 184.105.65.113 3.075 ms

5 *

6 [AS21589] 156.39.15.2 1.256 ms

Measurement taken from

IPinfo ProbeNet in San Jose, 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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