Autonomous system
AS18419 DADA-AS-TW DaDa Broadband LTD.
Unclassified APNIC
Summary
DaDa Broadband
residential isp cable dsl
DADA-AS-TW is operated by DaDa Broadband LTD., a Taiwanese cable and DSL internet service provider.
What it's used for
- The address space carries residential dynamic IP assignments, evidenced by reverse DNS entries such as
n64-h0.150.118.dynamic.da.net.twandn116-h0.109.124.dynamic.da.net.tw. - With 116,736 IPv4 addresses announced across 42 prefixes and only 14 observed neighbours, the high address-to-neighbour ratio indicates an access/eyeball network rather than a transit provider.
Notable
- Registrants vary across the inventory, including
IRT-CHIEF-TW-TWforCHIEF-AS-APblocks,IRT-SIGMA-TWforDADA-NETblocks, andIRT-SONET-TWforSONET-NETblocks, suggesting a history of acquisitions or leased space consolidation. - The inventory consists of a mix of /16, /20, /21, /22, and /23 prefixes, with the largest being
118.150.0.0/16, reflecting a finely subdivided corporate estate typical of a regional ISP managing multiple customer segments.
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
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Taipei Internet Exchange (TPIX) | Taipei, Taiwan | 203.163.222.38 |
Transit providers
6 upstream, 0 downstream and 6 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 42 prefixes · 117K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TW | Taiwan, Province of China | 42 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS18419- Registry name
- DADA-AS-TW
- Abuse contact
- noc@dmg.tv
- Registered
- 2008-09-04
- Last changed
- 2025-11-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 56 valid, 0 with no ROA
- ROAs
- 52 authorising AS18419
- ASPA
- no ASPA record
- IRR
- 100% registered · 56 of 56 announcements
- Route objects
- 315 naming AS18419
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: 442 networks and 1,784 prefixes, as published 2026-10-19. 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