173.250.224.0/21

AS14221 · University of Washington

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Summary

Country	United States
Domain	washington.edu
ASN	AS14221
Registry	ARIN
ID	UW-SEATTLE-07

WHOIS Details

NetHandle:      NET-173-250-224-0-1
OrgID:          UWND
Parent:         NET-173-0-0-0-0
NetName:        UW-SEATTLE-07
NetRange:       173.250.224.0 - 173.250.231.255
NetType:        allocation
RegDate:        2010-06-08
Updated:        2023-10-24
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:      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


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

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
173.250.160.0/19	AS73	University of Washington	8,192
173.250.240.0/20	AS21577	TOLEDO TELEPHONE CO INC	4,096
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

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

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

IP Address	ASN	Details
173.250.227.101	AS14221 University of Washington	`7.78ms` from Seattle, US
173.250.226.84	AS14221 University of Washington	`8.03ms` from Seattle, US
173.250.224.216	AS14221 University of Washington	`8.03ms` 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
86.83.233.21	AS1136 KPN B.V.	`1.37ms` from Amsterdam, NL
181.97.25.245	AS7303 Telecom Argentina S.A.	`9.77ms` from Asuncion, PY
131.153.29.5	AS11572 PhoenixNAP LLC	`0.47ms` from Atlanta, US
69.139.204.101	AS7922 Comcast Cable Communications, LLC	`0.99ms` from Atlanta, US
131.202.102.53	AS611 NB-PEI Educational Computer Network	`14.88ms` from Beauharnois, CA
218.77.157.181	AS4134 CHINANET-BACKBONE	`0.33ms` from Haikou, CN
108.236.171.133	AS7018 AT&T Enterprises, LLC	`2.55ms` from Houston, US
222.238.157.21	AS9318 SK Broadband Co Ltd	`1.20ms` from Incheon, KR
85.6.207.165	AS3303 Swisscom (Switzerland) Ltd	`0.55ms` from Lugano, CH
46.254.162.181	AS50596 Informatsionnye Tekhnologii LLC	`5.55ms` from Moscow, RU
126.49.231.117	AS17676 SoftBank Corp.	`5.63ms` from Osaka, JP
185.230.123.5	AS212238 Datacamp Limited	`0.21ms` from Palermo, IT
216.92.85.5	AS7859 pair Networks	`0.13ms` from Pittsburgh, US
46.171.160.181	AS5617 Orange Polska Spolka Akcyjna	`1.21ms` from Poznan, PL
39.112.227.165	AS9318 SK Broadband Co Ltd	`5.45ms` from Seoul, KR
216.83.6.53	AS11468 Think On, Inc.	`14.93ms` from St. John's, CA
213.166.209.245	AS12727 Vialis SEM	`13.68ms` from Strasbourg, FR
171.119.105.133	AS4837 CHINA UNICOM China169 Backbone	`4.32ms` from Taiyuan, CN
27.98.126.117	AS10010 TOKAI Communications Corporation	`2.61ms` from Tokyo, JP
54.248.223.53	AS16509 Amazon.com, Inc.	`0.18ms` from Tokyo, JP
70.31.50.197	AS577 Bell Canada	`4.09ms` from Toronto, CA
195.69.80.149	AS52142 Polcom Sp. z o.o.	`4.05ms` from Wrocław, PL
122.114.149.133	AS4837 CHINA UNICOM China169 Backbone	`0.27ms` from Zhengzhou, CN
73.86.104.245	AS7922 Comcast Cable Communications, LLC	`6.49ms` from Ashburn, US
118.254.164.117	AS4134 CHINANET-BACKBONE	`3.13ms` from Chenzhou, CN

Traceroute

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

traceroute -a -n -q1 -m6 173.250.225.172

traceroute to 173.250.225.172 (173.250.225.172): 6 hops max, 52 byte packets

1 [AS15169] 142.251.54.146 31.051 ms

2 *

3 [AS101] 209.124.190.14 38.828 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Las Vegas, US

On February 7th 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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