asn.dev

Autonomous system

AS135377 UCLOUD-HK-AS-AP UCLOUD INFORMATION TECHNOLOGY HK LIMITED

Unclassified DROP-listed space APNIC

IPv4 addresses 194K 166 prefixes
IPv6 prefixes 8 counted as prefixes, not addresses
Countries 1 mostly HK
Exchanges 2 recorded by PCH
Upstreams 23 32 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 2 exchanges in 2 countries, largest first.

ExchangeLocationTheir address
Hong Kong Internet ExchangeHong Kong, China123.255.91.212
JPIX TokyoTokyo, Japan210.171.225.197

Transit providers

23 upstream, 32 downstream and 66 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13335Cloudflare, Inc.23,399
AS21859Zenlayer Inc9,818
AS139327UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED2,709
AS174Cogent Communications, LLC2,461
AS6939Hurricane Electric LLC2,112
AS1299Arelion Sweden AB1,085
AS4229Zenlayer Inc849
AS136897Enjoyvc Cloud Group Limited.774

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 166 prefixes · 194K addresses IPv6 8 prefixes

CountryNamePrefixes
HKHong Kong174

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS135377
Registry name
UCLOUD-HK-AS-AP
Registrant
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Abuse contact
pn-wan@ucloud.cn
Registered
2020-09-16
Last changed
2020-09-16
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
97% valid · 738 valid, 23 with no ROA
ROAs
503 authorising AS135377
ASPA
no ASPA record
IRR
99.3% registered · 756 of 761 announcements
Route objects
1,717 naming AS135377

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

1 DROP match Announced space overlapping the DROP prefix list.

AnnouncedDROP entryRecord
101.36.96.0/19101.36.96.0/19SBL627127

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,781 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check