170.91.0.0/17

AS398535 · EAST SIDE UNION HIGH SCHOOL DIST

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Summary

Country	United States
Domain	esuhsd.org
ASN	AS398535
Registry	ARIN
ID	ESUHSD-BLK1

WHOIS Details

NetHandle:      NET-170-91-0-0-2
OrgID:          ESUHSD
Parent:         NET-170-91-0-0-1
NetName:        ESUHSD-BLK1
NetRange:       170.91.0.0 - 170.91.127.255
NetType:        reassignment
RegDate:        2001-11-21
Updated:        2001-11-21
TechHandle:     FR78-ARIN
Source:         ARIN


OrgID:          ESUHSD
OrgName:        East Side Union High School District
CanAllocate:    
Street:         830 North Capitol Avenue
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95133
RegDate:        1993-07-21
Updated:        2017-01-13
OrgAdminHandle: PHELP70-ARIN
OrgTechHandle:  DH172-ARIN
OrgTechHandle:  GASKA2-ARIN
OrgAbuseHandle: GASKA2-ARIN
Source:         ARIN


POCHandle:      DH172-ARIN
IsRole:         N
LastName:       Huie
FirstName:      David
Street:         Santa Clara County Office of Education
Street:         1290 Ridder Park Drive, MC 253
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95131-2304
RegDate:        1994-07-28
Updated:        2026-01-01
OfficePhone:    +1-925-999-4843
MobilePhone:    +1-925-984-9988
Mailbox:        dhuie@huiegroup.com
Source:         ARIN


POCHandle:      FR78-ARIN
IsRole:         N
LastName:       Rounds
FirstName:      Fred
Street:         830 N. Capitol Ave.
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95133
RegDate:        1999-11-30
Updated:        1999-11-30
OfficePhone:    +1-408-347-5166
Mailbox:        roundsf@esuhsd.org
Source:         ARIN


POCHandle:      PHELP70-ARIN
IsRole:         N
LastName:       Phelps
FirstName:      Randall
Street:         830 N. Capitol Ave.
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95133
RegDate:        2017-01-13
Updated:        2023-12-21
OfficePhone:    +1-408-347-5000
Mailbox:        phelpsr@esuhsd.org
Source:         ARIN


POCHandle:      GASKA2-ARIN
IsRole:         N
LastName:       Gaska
FirstName:      Gilbert
Street:         830 N Capitol Ave
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95133
RegDate:        2015-03-18
Updated:        2024-04-29
OfficePhone:    +1-408-347-5148
Mailbox:        GaskaGil@esuhsd.org
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 170.91.0.0/16

Range	ASN	Company	Num of IPs
170.91.192.0/18	AS398535	East Side Union High School District	16,384

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

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

IP Address	ASN	Details
170.91.11.50	AS398535 EAST SIDE UNION HIGH SCHOOL DIST	`0.79ms` from Fremont, US
170.91.5.130	AS398535 EAST SIDE UNION HIGH SCHOOL DIST	`1.00ms` from San Jose, US
170.91.33.10	AS398535 EAST SIDE UNION HIGH SCHOOL DIST	`1.24ms` from Fremont, 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
45.54.26.193	AS63911 NetActuate, Inc	`0.22ms` from Ashburn, US
71.127.59.1	AS701 Verizon Business	`1.55ms` from Ashburn, US
73.135.64.1	AS7922 Comcast Cable Communications, LLC	`3.19ms` from Ashburn, US
74.255.58.1	AS6389 AT&T Enterprises, LLC	`1.89ms` from Atlanta, US
101.109.227.161	AS23969 TOT Public Company Limited	`7.51ms` from Bangkok, TH
190.90.122.1	AS27837 Dialnet de Colombia S.A. E.S.P.	`15.63ms` from Bogota, CO
52.225.194.17	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US
1.31.201.225	AS4837 CHINA UNICOM China169 Backbone	`13.88ms` from Changchun, CN
2.105.175.1	AS3292 TDC Holding A/S	`1.22ms` from Copenhagen, DK
34.69.51.129	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
162.231.10.145	AS7018 AT&T Enterprises, LLC	`3.02ms` from Dallas, US
12.23.221.17	AS7018 AT&T Enterprises, LLC	`10.49ms` from Dallas, US
104.202.202.65	AS7459 Grande Communications Networks, LLC	`11.17ms` from Dallas, US
174.161.131.97	AS7922 Comcast Cable Communications, LLC	`14.75ms` from Dallas, US
184.159.49.1	AS22561 CenturyLink Communications, LLC	`11.09ms` from Denver, US
207.28.7.1	AS6122 Iowa Communications Network	`7.82ms` from Des Moines, US
188.109.80.1	AS3209 Vodafone GmbH	`1.30ms` from Duesseldorf, DE
201.73.62.97	AS4230 CLARO S.A.	`12.24ms` from Fortaleza, BR
183.128.83.129	AS4134 CHINANET-BACKBONE	`4.60ms` from Hangzhou, CN
220.191.61.1	AS4134 CHINANET-BACKBONE	`5.85ms` from Hangzhou, CN
122.47.78.1	AS17858 LG POWERCOMM	`1.95ms` from Incheon, KR
176.234.215.33	AS34984 Superonline Iletisim Hizmetleri A.S.	`4.93ms` from Istanbul, TR
103.125.215.225	AS17995 PT iForte Global Internet	`0.84ms` from Jakarta, ID
105.226.241.1	AS37457 Telkom SA Ltd.	`2.35ms` from Johannesburg, ZA
91.234.72.1	AS43067 PE Pretcher	`7.45ms` from Kyiv, UA

Traceroute

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

traceroute -a -n -q1 -m5 170.91.80.172

traceroute to 170.91.80.172 (170.91.80.172): 5 hops max, 52 byte packets

1 [AS7195] 200.25.36.66 0.088 ms

2 [AS3356] 8.243.52.45 0.735 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Fortaleza, BR

On March 13th 2026

What are IP address ranges?

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