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Data as of Nov 6, 2026

143.89.64.0/21

No anonymizer space · no proxy exits in 30 days

Hong Kong University of Science and Technology

Announcement

No RPKI

Announced by

Type

Business

Risk

0 / 100 · Low

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Announced by

Covering announcement 143.89.0.0/16

Prefix: 143.89.0.0/16
Announced by: AS3363 Hong Kong University of Science and Technology
Type: Business
Proxy exits: 47
RPKI: No RPKI
Netname: USTHK-NET
Registrant: Hong Kong University of Science and Technology
RIR: APNIC

Origin network

AS3363

HK

Name: Hong Kong University of Science and Technology
Type: Education
Registered: Nov 24, 2003
Domain: ust.hk
Industry: Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP: not listed

IRR

Route objects on 143.89.0.0/16

Origin	Registry	Description	Maintainer	Modified
AS3363	RADB	Proxy-registered route object	MAINT-AS9304	Nov 13, 2023
AS3363	NTTCOM	CMI IP Transit	MAINT-CMI-INT-HK	Jan 8, 2018
AS3662 not the origin	REACH	REACH (Customer Route)	MAINT-REACH-NOC	Aug 30, 2005
AS3662 not the origin	RADB	HGC (customer route)	MAINT-AS9304	Nov 13, 2023
AS3662 not the origin	NTTCOM	Proxy-registered route object	MAINT-AS9304	Jul 6, 2005
AS9269 not the origin	REACH	REACH (Customer Route)	MAINT-REACH-NOC	Mar 7, 2012
AS9269 not the origin	RADB	HKBN(customer route)	MAINT-AS9269	Nov 13, 2023
AS9269 not the origin	NTTCOM	HKBN as object (AS9269)	MAINT-HKBN	Oct 19, 2017
AS10103 not the origin	RADB	HKBN(customer route)	MAINT-AS9269	Nov 13, 2023
AS45474 not the origin	RADB	Nexusguard (Customer Route)	MAINT-AS45474	Nov 13, 2023