63.223.64.0/18

Currently announced jointly by AS3491 PCCW Global, AS31713 GWCOMMS-MPLS, in the routed prefix 63.223.64.0/18.

Current ASN: AS3491 AS31713; PCCW Global
Routed prefix: 63.223.64.0/18; Most specific route covering this prefix
ASNs over time: 2; 4 announcement records
RIR allocation: APNIC; Hong Kong SAR China · 63.216.0.0/13

Routing data · Nov 8, 2026, 12:23 UTC

ASN historyEvery routed prefix covering 63.223.64.0/18

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
63.223.64.0/18	AS3491	PCCW Global	Hong Kong SAR China	Before monitoring	2026-11-08 12:23	Announcing
63.223.64.0/18	AS31713	GWCOMMS-MPLS	Belgium	Before monitoring	2026-11-08 12:23	Announcing
63.216.0.0/13	AS3491	PCCW Global	Hong Kong SAR China	Before monitoring	2026-11-08 12:23	Announcing
63.216.0.0/13	AS31713	GWCOMMS-MPLS	Belgium	Before monitoring	2026-11-08 12:23	Announcing

More specific routes34 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
63.223.64.0/23	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.64.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.65.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.66.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.68.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.74.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.75.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.77.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.78.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.84.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.88.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.91.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.94.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.97.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.98.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.101.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.102.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.111.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.112.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.114.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.116.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.120.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.121.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.124.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-08 12:23	Announcing
63.223.69.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.73.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.92.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.96.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.100.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.119.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.122.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.125.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.126.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped
63.223.127.0/24	AS19194	Sentris Network LLC	United States	Before monitoring	2026-11-03 04:47	Stopped

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: 63.216.0.0/13
Country: Hong Kong SAR China
Allocation date: 1999-12-09
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.