149.104.0.0/19

Currently announced by AS932 XNNET, in the routed prefix 149.104.0.0/19.

Current ASN: AS932; XNNET
Routed prefix: 149.104.0.0/19; Most specific route covering this prefix
ASNs over time: 2; 2 announcement records
RIR allocation: ARIN; United States · 149.104.0.0/16

Routing data · Oct 23, 2026, 20:21 UTC

ASN historyEvery routed prefix covering 149.104.0.0/19

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
149.104.0.0/19	AS932	XNNET	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.0.0/16	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-10-23 20:21	Announcing

More specific routes38 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
149.104.0.0/24	AS6134	XNNET LLC	United States	2026-10-23 18:21	2026-10-23 20:21	Announcing
149.104.1.0/24	AS6134	XNNET LLC	United States	2026-10-23 18:21	2026-10-23 20:21	Announcing
149.104.2.0/24	AS6134	XNNET LLC	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.3.0/24	AS42960	VH-GLOBAL	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.4.0/24	AS42960	VH-GLOBAL	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.5.0/24	AS42960	VH-GLOBAL	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.6.0/24	AS42960	VH-GLOBAL	Hong Kong SAR China	2026-10-23 18:21	2026-10-23 20:21	Announcing
149.104.7.0/24	AS6134	XNNET LLC	United States	2026-10-23 18:21	2026-10-23 20:21	Announcing
149.104.8.0/24	AS6134	XNNET LLC	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.9.0/24	AS6134	XNNET LLC	United States	2026-10-23 18:21	2026-10-23 20:21	Announcing
149.104.11.0/24	AS6134	XNNET LLC	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.12.0/24	AS6134	XNNET LLC	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.13.0/24	AS6134	XNNET LLC	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.14.0/24	AS6134	XNNET LLC	United States	2026-10-23 18:21	2026-10-23 20:21	Announcing
149.104.15.0/24	AS55933	Cloudie	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.16.0/22	AS55933	Cloudie	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.16.0/23	AS55933	Cloudie	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.16.0/24	AS6134	XNNET LLC	United States	2026-10-23 18:21	2026-10-23 20:21	Announcing
149.104.17.0/24	AS6134	XNNET LLC	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.18.0/24	AS6134	XNNET LLC	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.19.0/24	AS6134	XNNET LLC	United States	Before monitoring	2026-10-23 20:21	Announcing
149.104.20.0/24	AS55933	Cloudie	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.21.0/24	AS42960	VH-GLOBAL	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.22.0/24	AS42960	VH-GLOBAL	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.23.0/24	AS42960	VH-GLOBAL	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.24.0/21	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.24.0/22	AS153726	Shanghai Huiduan Technology Co., LTD.	China	Before monitoring	2026-10-23 20:21	Announcing
149.104.24.0/22	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.24.0/24	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.25.0/24	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.26.0/24	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.27.0/24	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.28.0/22	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.28.0/22	AS153726	Shanghai Huiduan Technology Co., LTD.	China	Before monitoring	2026-10-23 20:21	Announcing
149.104.28.0/24	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.29.0/24	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.30.0/24	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing
149.104.31.0/24	AS139659	LUCIDACLOUD	Hong Kong SAR China	Before monitoring	2026-10-23 20:21	Announcing

Change logAll changes

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

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RIR allocation record

Registry: ARIN
Allocated block: 149.104.0.0/16
Country: United States
Allocation date: 1992-02-03
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.