223.197.128.0/17

Currently announced by AS4760 HKT Limited, in the routed prefix 223.197.128.0/17.

Current ASN: AS4760; HKT Limited
Routed prefix: 223.197.128.0/17; Most specific route covering this prefix
ASNs over time: 2; 2 announcement records
RIR allocation: APNIC; Hong Kong SAR China · 223.197.0.0/16

Routing data · Oct 23, 2026, 04:19 UTC

ASN historyEvery routed prefix covering 223.197.128.0/17

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
223.197.128.0/17	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.0.0/16	AS4515	PCCW IMS	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing

More specific routes68 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
223.197.128.0/19	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.129.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.130.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.132.0/22	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.136.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.140.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.141.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.142.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.143.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.145.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.146.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.148.0/22	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.152.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.153.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.160.0/19	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.160.0/22	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.164.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.165.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.166.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.167.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.168.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.169.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.170.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.171.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.172.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.173.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.174.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.175.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.176.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.177.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.178.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.179.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.180.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.181.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.182.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.183.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.184.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.185.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.186.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.187.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.188.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.189.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.192.0/19	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.193.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.195.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.196.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.199.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.201.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.202.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.203.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.204.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.205.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.207.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.208.0/22	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.212.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.214.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.215.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.216.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.219.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.220.0/22	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.224.0/19	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.224.0/21	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.232.0/21	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.240.0/21	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.248.0/22	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.253.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.254.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	Announcing
223.197.255.0/24	AS4760	HKT Limited	Hong Kong SAR China	Before monitoring	2026-10-23 04:19	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: 223.197.0.0/16
Country: Hong Kong SAR China
Allocation date: 2010-08-05
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.