asn.dev

Autonomous system

AS212358 TW-DANNY-AS

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly TW
Exchanges 1 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

WeiXuan Chang

Taiwan, Province of China · AI-generated

taiwan ipv4 ipv6

The AS handle TW-DANNY-AS is held by WeiXuan Chang.

What it's used for

  • The space carries a single IPv4 block with netname ASSMAU-NET and registrant IRT-ASSMAU-TW.
  • The inventory consists of 256 IPv4 addresses and 1 IPv6 prefix, observed against 2 neighbours, indicating a small-scale network with limited peering.

Notable

  • The RDAP registrant IRT-ASSMAU-TW differs from the AS holder name WeiXuan Chang, suggesting the address space may be leased or managed under a different administrative identity.
  • The address inventory is minimal, comprising one /24 IPv4 prefix and one /48 IPv6 prefix.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Student & Technology United Internet ExchangesTaipei, Taiwan103.158.187.17

Transit providers

4 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS23961Misaka Network, Inc.49
AS6939Hurricane Electric LLC29
AS24482SG.GS2
AS38855Taiwan Digital Streaming Co.2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 1 prefixes · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
TWTaiwan, Province of China2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS212358
Registry name
TW-DANNY-AS
Registrant
da21510-mnt
Abuse contact
da21510@gmail.com
Registered
2020-11-16
Last changed
2024-12-02
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
WeiXuan Chang
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Peering policy
Open
IRR as-set
AS-DA21510
Present at
1 exchanges

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
50% valid · 1 valid, 1 with no ROA
ROAs
1 authorising AS212358
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS212358

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.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 448 networks and 1,849 prefixes, as published 2026-10-29. 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