220.229.128.0/18

Currently announced by AS9919 New Century InfoComm Tech Co., Ltd., in the routed prefix 220.229.128.0/18.

Current ASN: AS9919; New Century InfoComm Tech Co., Ltd.
Routed prefix: 220.229.128.0/18; Most specific route covering this prefix
ASNs over time: 1; 4 announcement records
RIR allocation: APNIC; Taiwan · 220.228.0.0/15

Routing data · Nov 10, 2026, 10:24 UTC

ASN historyEvery routed prefix covering 220.229.128.0/18

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
220.229.128.0/18	AS9919	New Century InfoComm Tech Co., Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.128.0/17	AS9919	New Century InfoComm Tech Co., Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.0.0/16	AS9919	New Century InfoComm Tech Co., Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.228.0.0/15	AS9919	New Century InfoComm Tech Co., Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing

More specific routes32 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
220.229.128.0/19	AS9919	New Century InfoComm Tech Co., Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.128.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.129.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.130.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.131.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.132.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.133.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.134.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.135.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.140.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.141.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.142.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.143.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.147.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.148.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.149.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.150.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.151.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.152.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.153.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.154.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.155.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.156.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.157.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.158.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.159.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.160.0/19	AS9919	New Century InfoComm Tech Co., Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.160.0/24	AS9919	New Century InfoComm Tech Co., Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.161.0/24	AS9919	New Century InfoComm Tech Co., Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.172.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.173.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	Before monitoring	2026-11-10 10:24	Announcing
220.229.174.0/24	AS4780	New Century InfoComm Tech Co.,Ltd.	Taiwan	2026-11-10 06:23	2026-11-10 10:24	Announcing

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.

Look up another address

RIR allocation record

Registry: APNIC
Allocated block: 220.228.0.0/15
Country: Taiwan
Allocation date: 2004-01-02
Status: allocated

From the RIRs’ delegated statistics files. Shows where the addresses are registered, not where they are used.

How monitoring works

Every 2 hours ASNBase takes the bgp.tools global routing table (prefix → origin ASN) and compares it with the previous one. The detected time is the time of that comparison; the actual change can be up to about 2 hours earlier.
Only routes seen by more than 100 bgp.tools peers are listed as changes; routes with less visibility are only kept in the history.
A new announcement counts only if it is still in the next routing table, and a withdrawal only if the prefix is missing from two tables in a row, so short flaps are ignored.
ASNBase has been monitoring since 2026-10-19. “Before monitoring” under “First seen” means the route was already announced when monitoring started; the earlier date is unknown.
Prefixes first seen during the first day of monitoring do not count as new announcements: most of them were simply missing from the table at the moment monitoring started.
Countries and regions follow the ASN’s registration, not the actual location of the IP addresses.