112.4.128.0/19

Currently announced by AS56046 CMNET-Jiangsu-AP, in the routed prefix 112.4.128.0/19.

Current ASN: AS56046; CMNET-Jiangsu-AP
Routed prefix: 112.4.128.0/19; Most specific route covering this prefix
ASNs over time: 2; 4 announcement records
RIR allocation: APNIC; China · 112.0.0.0/10

Routing data · Nov 8, 2026, 10:26 UTC

ASN historyEvery routed prefix covering 112.4.128.0/19

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
112.4.128.0/19	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.128.0/17	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.0.0/16	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.0.0.0/10	AS9808	China Mobile Communications Group Co., Ltd.	China	Before monitoring	2026-11-08 10:26	Announcing

More specific routes23 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
112.4.128.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.130.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.131.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.134.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.136.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.137.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.138.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.139.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.142.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.144.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.146.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.148.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.149.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.150.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.151.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.152.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.153.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.154.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.155.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.156.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.157.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.158.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	Announcing
112.4.159.0/24	AS56046	CMNET-Jiangsu-AP	China	Before monitoring	2026-11-08 10:26	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: 112.0.0.0/10
Country: China
Allocation date: 2008-12-15
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.