173.250.160.0/19

AS73 · University of Washington

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Summary

Country	United States
Domain	washington.edu
ASN	AS73
Registry	ARIN
ID	UW-SEATTLE-07

WHOIS Details

NetHandle:      NET-173-250-160-0-1
OrgID:          UWND
Parent:         NET-173-0-0-0-0
NetName:        UW-SEATTLE-07
NetRange:       173.250.160.0 - 173.250.191.255
NetType:        allocation
RegDate:        2010-06-08
Updated:        2023-10-03
TechHandle:     OWU2-ARIN
AbuseHandle:    UWSO-ARIN
NOCHandle:      OWU2-ARIN
Source:         ARIN


OrgID:          UWND
OrgName:        University of Washington
CanAllocate:    
Street:         4545 15th Ave NE
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98105
RegDate:        1970-01-01
Updated:        2020-10-30
OrgAdminHandle: UW-NOC-ARIN
OrgTechHandle:  UW-NOC-ARIN
OrgAbuseHandle: UWSO-ARIN
OrgNOCHandle:   UW-NOC-ARIN
Source:         ARIN


POCHandle:      UW-NOC-ARIN
IsRole:         Y
LastName:       University of Washington Networks and Distributed
FirstName:      
Street:         4545 15th Avenue NE,  354841
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98105-4527
RegDate:        1970-01-01
Updated:        2025-12-17
OfficePhone:    +1-206-221-6000
Mailbox:        uw-noc@uw.edu
Source:         ARIN


POCHandle:      OWU2-ARIN
IsRole:         N
LastName:       University
FirstName:      Of
Street:         4545 15th Ave NE
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98105
RegDate:        1993-03-26
Updated:        2021-05-04
OfficePhone:    +1-206-221-6000
Mailbox:        noc@cac.washington.edu
Source:         ARIN


POCHandle:      UWSO-ARIN
IsRole:         Y
LastName:       University of Washington Security Operations
FirstName:      
Street:         4545 15th Ave NE
City:           Seattle
State/Prov:     WA
Country:        US
PostalCode:     98105
RegDate:        2004-02-02
Updated:        2021-10-22
OfficePhone:    +1-206-221-7000
Mailbox:        abuse@uw.edu
Mailbox:        security@uw.edu
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 173.250.0.0/16

Range	ASN	Company	Num of IPs
173.250.128.0/19	AS32990	East Central Energy	8,192
173.250.240.0/20	AS21577	TOLEDO TELEPHONE CO INC	4,096
173.250.224.0/21	AS14221	University of Washington	2,048
173.250.232.0/21	AS53971	PD Fiber, LLC	2,048

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
173.250.186.211	AS73 University of Washington	`0.86ms` from Seattle, 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
91.145.210.211	AS34058 Limited Liability Company lifecell	`7.12ms` from Kyiv, UA
91.149.202.115	AS26383 Baxet Group Inc.	`0.28ms` from London, GB
90.220.140.147	AS5607 Sky UK Limited	`6.67ms` from London, GB
97.104.108.3	AS33363 Charter Communications, Inc	`10.23ms` from Orlando, US
60.74.2.211	AS17676 SoftBank Corp.	`8.19ms` from Osaka, JP
126.62.42.147	AS17676 SoftBank Corp.	`2.85ms` from Osaka, JP
153.178.171.115	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.25ms` from Osaka, JP
91.144.154.83	AS42116 JSC ER-Telecom Holding	`11.69ms` from Samara, RU
213.169.42.3	AS29580 A1 Bulgaria EAD	`0.66ms` from Sofia, BG
84.82.129.227	AS1136 KPN B.V.	`1.47ms` from Amsterdam, NL
188.91.50.163	AS50266 Odido Netherlands B.V.	`2.76ms` from Amsterdam, NL
194.179.166.3	AS6079 RCN	`1.53ms` from Ashburn, US
68.34.17.83	AS7922 Comcast Cable Communications, LLC	`7.66ms` from Flint, US
24.222.43.163	AS11260 EastLink	`15.97ms` from Fredericton, CA
1.12.233.51	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.21ms` from Guangzhou, CN
123.20.136.243	AS45899 VNPT Corp	`1.23ms` from Ho Chi Minh City, VN
34.39.86.83	AS396982 Google LLC	`0.11ms` from London, GB
90.163.201.83	AS12479 Orange Espagne SA	`8.16ms` from Madrid, ES
83.61.182.131	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.63ms` from Madrid, ES
167.60.180.35	AS6057 Administracion Nacional de Telecomunicaciones	`1.75ms` from Montevideo, UY
140.209.219.19	AS394089 Google LLC	`0.15ms` from Osaka, JP
92.249.43.3	AS209852 MEILLEURTAUX SAS	`0.74ms` from Paris, FR
195.101.66.195	AS3215 Orange S.A.	`3.58ms` from Paris, FR
69.233.217.3	AS7018 AT&T Enterprises, LLC	`4.38ms` from Redding, US
47.45.254.51	AS33588 Charter Communications LLC	`16.78ms` from Seattle, US

Traceroute

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

traceroute -a -n -q1 -f5 -m9 173.250.167.109

traceroute to 173.250.167.109 (173.250.167.109): 9 hops max, 52 byte packets

5 [AS3356] 4.2.138.138 135.525 ms

6 [AS101] 209.124.180.159 138.916 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Coventry, GB

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.

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