AS Number
AS101
AS Name
WASH-NSF-AS
Org Name
University of Washington
Registry

arin

RegDate

2020-05-20

Updated

2024-08-06

AS101 Looking Glass
IPv4Prefixes

4

IPv6Prefixes

5

IPv4 NUMs

8,192

IPv6 NUMs(/64)

4,295,032,832

8,192 IPv4 Addresses
CIDR Description IP Num
207.231.240.0/20 Pacific Wave 4096
209.124.176.0/21 Pacific Northwest Gigapop 2048
209.124.176.0/20 Pacific Northwest Gigapop 4096
209.124.184.0/21 Pacific Northwest Gigapop 2048
CIDR Description IP NUMs(prefix /64)
2001:504:b::/48 Pacific Wave 65536
2001:1860::/32 Pacific Northwest Gigapop 4294967296
2001:1860:4000::/34 Pacific Northwest Gigapop 1073741824
2001:1860:8000::/34 Pacific Northwest Gigapop 1073741824
2001:1860:c000::/34 Pacific Northwest Gigapop 1073741824
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS11164 INTERNET2-I2PX - Internet2, US United States 2,048 17,170,432 IPv4 IPv4 IPv6 IPv6
AS11537 INTERNET2-RESEARCH-EDU - Internet2, US United States 9,216 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS18106 VIEWQWEST-SG-AP - Viewqwest Pte Ltd, SG Singapore 53,248 13,153,337,344 IPv4 IPv4 IPv6 IPv6
AS293 ESNET, US United States 140,288 4,295,163,904 IPv4 IPv4 IPv6 IPv6
AS6509 CANARIE-NTN - CANARIE Inc, CA Canada 768 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS35179 KORBANK-AS - Korbank S. A., PL Poland 21,760 8,589,934,592 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 464,128 282,627,370,778,624 IPv4 IPv4 IPv6 IPv6
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 106,240 355,679,338,496 IPv4 IPv4 IPv6 IPv6
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 99,840 77,386,809,344 IPv4 IPv4 IPv6 IPv6
AS45796 UIH-BBCONNECT-AS-AP - UIH / BB Connect, TH Thailand 2,048 4,294,967,296 IPv6 IPv6
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 29,081,216 77,349,781,760 IPv4 IPv4 IPv6 IPv6
AS6423 DF-PTL2-3 - Digital Fortress, US United States 34,816 33,554,432 IPv4 IPv4
AS9002 RETN-AS - RETN Limited, GB United Kingdom 37,376 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS53828 NITEL - NETWORK INNOVATIONS, LLC, US United States 132,096 4,294,967,296 IPv4 IPv4
AS2907 SINET-AS - Research Organization of Information and Systems, National Institute of Informatics, JP Japan 8,883,264 8,589,934,592 IPv4 IPv4
AS3491 CONSOLE-CONNECT-ASN - PCCW Global, Inc., US United States 1,084,672 12,885,032,960 IPv4 IPv4
AS2497 IIJ - Internet Initiative Japan Inc., JP Japan 3,842,816 17,716,871,168 IPv4 IPv4 IPv6 IPv6
AS38022 REANNZ-NZ-AP - Research and Education Advanced Network New Zealand, NZ New Zealand 13,824 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS140570 HKBCS-AS-AP - Hong Kong Beecloud System Technology Services Limited, HK Hong Kong 4,608 65,536 IPv4 IPv4
AS852 ASN852 - TELUS Communications Inc., CA Canada 4,735,744 12,907,118,592 IPv4 IPv4 IPv6 IPv6
AS2153 CENIC-2153 - CENIC, US United States 4,352 16,842,752 IPv4 IPv4 IPv6 IPv6
AS7575 AARNET-AS-AP - Australian Academic and Research Network, AU Australia 1,154,304 25,769,934,848 IPv4 IPv4 IPv6 IPv6
AS57695 MISAKA - Misaka Network, Inc., US United States 3,584 8,628,862,976 IPv4 IPv4
AS575 DNIC-AS-00575 - Headquarters, USAISC, US United States 0 851,968 IPv6 IPv6
AS2152 CENIC-2152 - CENIC, US United States 2,013,696 4,294,967,296 IPv4 IPv4
AS6360 UNIVHAWAII - University of Hawaii, US United States 254,976 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS59105 HOMENOC - Home NOC Operators Group, JP Japan 2,048 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS4777 APNIC-COLO - Asia Pacific Network Information Centre, AU Australia 512 1,073,741,824 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20,992 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS35280 F5 - F5 Networks SARL, FR France 53,248 81,604,378,624 IPv4 IPv4 IPv6 IPv6
AS58511 ANYCAST-GLOBAL-BACKBONE - Anycast Holdings Pty Ltd, AU Australia 23,552 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS18125 MAFFIN - Ministry of Agriculture, Forestry and Fisheries Research Network, JP Japan 65,536 4,294,967,296 IPv6 IPv6
AS174 COGENT-174 - Cogent Communications, LLC, US United States 35,936,000 258,978,086,912 IPv4 IPv4 IPv6 IPv6
AS17579 KREONET2-AS-KR - KISTI, KR Republic of Korea 7,180 65,536 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS73 WASHINGTON-AS - University of Washington, US United States 238,848 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS2907 SINET-AS - Research Organization of Information and Systems, National Institute of Informatics, JP Japan 8,883,264 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS22335 MREN - Metropolitan Research and Education Network, US United States 256 0 IPv4 IPv4 IPv6 IPv6
AS32361 ULTRALIGHT, US United States 1,024 4,295,032,832 IPv4 IPv4 IPv6 IPv6
AS47065 PEERING-RESEARCH-TESTBED-USC-UFMG-AS47065 - USC / UFMG PEERING Research Testbed, US United States 3,072 2,752,512 IPv4 IPv4
AS714 APPLE-ENGINEERING - Apple Inc., US United States 17,990,144 17,180,000,256 IPv4 IPv4 IPv6 IPv6
AS13476 MSU-BOZEMAN - Montana State University, US United States 80,640 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS53472 CKW-3 - City of Kirkland Washington, US United States 256 0 IPv4 IPv4
AS293 ESNET, US United States 140,288 4,295,163,904 IPv4 IPv4 IPv6 IPv6
AS668 DNIC-AS-00668 - United States Department of Defense (DoD), US United States 2,666,752 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS3428 ESNET-AS - ESnet, US United States 68,352 1,048,576 IPv4 IPv4
AS3807 UMTNET-ASN - University of Montana, US United States 85,760 16,777,216 IPv4 IPv4 IPv6 IPv6
AS6509 CANARIE-NTN - CANARIE Inc, CA Canada 768 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS7497 CSTNET-AS-AP - CNIC-CAS, CN China 736,768 77,309,411,328 IPv4 IPv4
AS7774 ALASKA - University of Alaska, US United States 81,920 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US United States 65,647,104 601,569,558,528 IPv4 IPv4 IPv6 IPv6
AS17579 KREONET2-AS-KR - KISTI, KR Republic of Korea 7,180 65,536 IPv4 IPv4 IPv6 IPv6
AS38022 REANNZ-NZ-AP - Research and Education Advanced Network New Zealand, NZ New Zealand 13,824 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS44855 Microgen-ASN - Aptitude Software (Poland) Sp. z o.o., PL Poland 256 0 IPv4 IPv4
AS11548 HERITAGE-UNIV-AS - Heritage University, US United States 512 0 IPv4 IPv4
AS17200 SEATTLECOLL - Seattle Community College District, US United States 12,544 0 IPv4 IPv4
AS17934 NICT-NET - National Institute of Information and Communications Technology, JP Japan 4,096 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS22972 UW-MEDICINE - University of Washington, US United States 1,024 0 IPv4 IPv4
AS40272 ALLENINSTITUTE - Allen Institute, US United States 256 0 IPv4 IPv4
AS11956 NOAA-XWAVE - National Oceanic and Atmospheric Administration, US United States 0 0 IPv4 IPv4 IPv6 IPv6
AS16509 AMAZON-02 - Amazon.com, Inc., US United States 167,566,080 1,152,921,504,606,846,976 IPv4 IPv4 IPv6 IPv6
AS64247 UW-RESEARCH - University of Washington, US United States 1,280 16,777,216 IPv4 IPv4 IPv6 IPv6
AS2153 CENIC-2153 - CENIC, US United States 4,352 16,842,752 IPv4 IPv4 IPv6 IPv6
AS4193 WA-STATE-GOV - State of Washington, US United States 656,384 1,099,511,627,776 IPv4 IPv4 IPv6 IPv6
AS6360 UNIVHAWAII - University of Hawaii, US United States 254,976 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS19014 NORCOM, US United States 256 65,536 IPv4 IPv4 IPv6 IPv6
AS24 AS24 - National Aeronautics and Space Administration, US United States 65,536 65,536 IPv4 IPv4 IPv6 IPv6
AS226 LOS-NETTOS-AS - Los Nettos, US United States 313,856 4,294,967,296 IPv4 IPv4
AS3701 LINK-OREGON - University of Oregon, US United States 170,496 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS10430 WA-K20 - Washington State K-20 Telecommunications Network, US United States 646,912 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS11649 GUNET - Gonzaga University, US United States 65,536 0 IPv4 IPv4
AS14221 UW-GR-AS - University of Washington, US United States 2,048 16,777,216 IPv4 IPv4 IPv6 IPv6
AS14954 FHCRC - The Fred Hutchinson Cancer Research Center, US United States 73,728 0 IPv4 IPv4
AS7539 TWAREN-TW - National Center for High-performance Computing, TW Taiwan 86,528 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS7575 AARNET-AS-AP - Australian Academic and Research Network, AU Australia 1,154,304 25,769,934,848 IPv4 IPv4 IPv6 IPv6
AS15169 GOOGLE - Google LLC, US United States 1,949,696 38,671,482,880 IPv4 IPv4 IPv6 IPv6
AS18592 Corporacion Universitaria para el Desarrollo de Internet, A.C., MX Mexico 8,704 12,884,901,888 IPv4 IPv4

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
United States SpokaneIX - Spokane Internet Exchange 206.83.139.14 2001:504:9f::14 10 Gbps 2025-05-07 00:22:27
United States Pacific Wave - Pacific Wave Exchange in LA, Sunnyvale and Seattle 207.231.245.1 2001:504:b:88::1 400 Gbps 2025-05-07 00:20:28
United States SIX Seattle - Seattle Internet Exchange (MTU 1500) 206.81.80.85 2001:504:16::85:0:65 100 Gbps 2020-01-15 20:04:42
United States Pacific Wave - Pacific Wave Exchange in LA, Sunnyvale and Seattle 207.231.240.1 2001:504:b:10::1 400 Gbps 2025-05-07 00:20:28
United States Pacific Wave - Pacific Wave Exchange in LA, Sunnyvale and Seattle 207.231.243.1 2001:504:b:81::1 400 Gbps 2025-05-07 00:20:28
United States SIX Seattle - Seattle Internet Exchange (MTU 1500) 206.81.80.84 2001:504:16::65 100 Gbps 2017-03-31 17:11:51
United States SIX Seattle (Jumbo) - Seattle Internet Exchange (MTU 9000) 149.112.96.85 2001:504:16:1:0:85:0:65 100 Gbps 2024-11-21 18:52:08
United States NWAX - Northwest Access Exchange, Inc. 198.32.195.17 2620:124:2000::17 10 Gbps 2020-03-05 23:56:12
Japan JPIX TOKYO 210.171.225.170 2001:de8:8::101:1 100 Gbps 2021-11-15 22:52:13
United States Pacific Wave - Pacific Wave Exchange in LA, Sunnyvale and Seattle 207.231.241.1 2001:504:b:80::1 400 Gbps 2025-05-07 00:20:28
United States SIX Seattle (Jumbo) - Seattle Internet Exchange (MTU 9000) 149.112.96.84 2001:504:16:1::65 100 Gbps 2024-11-21 18:52:08
United States Pacific Wave - Pacific Wave Exchange in LA, Sunnyvale and Seattle 207.231.242.1 2001:504:b:11::1 400 Gbps 2025-05-07 00:20:28
United States Pacific Wave - Pacific Wave Exchange in LA, Sunnyvale and Seattle 207.231.248.1 2001:504:b:89::1 400 Gbps 2025-05-07 00:20:28

Private Peering Facilities

Country/Region Name City Website Updated
Digital Realty Seattle SEA10 Seattle https://www.digitalrealty.com 2016-03-14 20:48:08
The Pittock Portland http://www.pittock.com 2016-03-14 21:17:05
US Bank Building Spokane 2017-03-31 18:53:46
ASNumber:       101
ASName:         WASH-NSF-AS
ASHandle:       AS101
RegDate:        1987-03-31
Updated:        2021-10-01    
Ref:            https://rdap.arin.net/registry/autnum/101


OrgName:        University of Washington
OrgId:          UWND-Z
Address:        4545 15th Ave NE
City:           Seattle
StateProv:      WA
PostalCode:     98105
Country:        US
RegDate:        2020-05-20
Updated:        2024-08-06
Ref:            https://rdap.arin.net/registry/entity/UWND-Z


OrgTechHandle: UW-NOC-ARIN
OrgTechName:   University of Washington Networks and Distributed
OrgTechPhone:  +1-206-221-6000 
OrgTechEmail:  uw-noc@uw.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/UW-NOC-ARIN

OrgAbuseHandle: UWSO-ARIN
OrgAbuseName:   University of Washington Security Operations
OrgAbusePhone:  +1-206-221-7000 
OrgAbuseEmail:  abuse@uw.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/UWSO-ARIN

OrgNOCHandle: UW-NOC-ARIN
OrgNOCName:   University of Washington Networks and Distributed
OrgNOCPhone:  +1-206-221-6000 
OrgNOCEmail:  uw-noc@uw.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/UW-NOC-ARIN

RTechHandle: UW-NOC-ARIN
RTechName:   University of Washington Networks and Distributed
RTechPhone:  +1-206-221-6000 
RTechEmail:  uw-noc@uw.edu
RTechRef:    https://rdap.arin.net/registry/entity/UW-NOC-ARIN