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Data as of Nov 6, 2026

203.211.0.0/19

2 anonymizer addresses · 0.02% · Datacenter proxy

Taiwan Fixed Network, Telco and Network Service Provider. · space held by Taiwan Telecommunication Network Services Co. Ltd.

Announcement
this exact prefix
RPKI valid
Announced by
AS9924
Type
Residential
>99% of it
IPv4 market

Path

1 · Holder
Taiwan Telecommunication Network Services Co. Ltd.
2 · Leased from
not leased
3 · Announced by
AS9924 Taiwan Fixed Network, Telco and Network Service Provider.
since Dec 2013 · 12.9 yr ago
4 · Use
Residential
anonymizer space, operator not named

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

203.211.0.0/19

From the registry to its use

  1. Jun 4, 2004
    Route object
    AS9505 Taiwan Internet Gateway
    REACH route object for AS9505 Taiwan Internet Gateway, maintainer MAINT-REACH-NOC
  2. May 9, 2005– Dec 1, 2013
    Announced
    AS4747 TTN ASN merged by TFN
  3. Jul 6, 2005
    Route object
    AS4747 TTN ASN merged by TFN
    REACH route object for AS4747 TTN ASN merged by TFN, maintainer MAINT-REACH-NOC
  4. Dec 8, 2013– today
    Announced
    AS9924 Taiwan Fixed Network, Telco and Network Service Provider.
    Internet provider
  5. Feb 22, 2017
    Route object
    AS9924 Taiwan Fixed Network, Telco and Network Service Provider.
    RADB route object for AS9924 Taiwan Fixed Network, Telco and Network Service Provider., maintainer MAINT-AS9924
    203.211.1.0/24
  6. Feb 23, 2017
    Route object
    AS9924 Taiwan Fixed Network, Telco and Network Service Provider.
    NTTCOM route object for AS9924 Taiwan Fixed Network, Telco and Network Service Provider., maintainer MAINT-AS9924
    203.211.1.0/24
  7. today
    Registry record
    Taiwan Telecommunication Network Services Co. Ltd.
    ALLOCATED PORTABLE
    203.211.0.0/19

Announcements

More specific

Announcements inside

PrefixOriginTypeAnonymizer addressesHolderRPKI
203.211.2.0/24
since Jan 2016
AS9924Residential10.39%Datacenter proxyTaiwan Telecommunication Network Services Co. Ltd.
203.211.4.0/24
since Jan 2016
AS9924ResidentialTaiwan Telecommunication Network Services Co. Ltd.
203.211.5.0/24
since Feb 2016
AS9924Residential10.39%Datacenter proxyTaiwan Telecommunication Network Services Co. Ltd.
203.211.7.0/24
since Oct 2022
AS9924ResidentialTaiwan Telecommunication Network Services Co. Ltd.
203.211.9.0/24
since Oct 2022
AS9924ResidentialTaiwan Telecommunication Network Services Co. Ltd.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

8,192 addresses
TypeAddressesShareRanges
Residential8,190>99%12
Datacenter proxyanonymizer20.02%2

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS9924

TW
Name
Taiwan Fixed Network, Telco and Network Service Provider.
Type
Internet provider
Registered
Mar 28, 2000
Domain
taiwanmobile.com
Website
www.taiwanmobile.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed