39.172.0.0/16

Currently announced by AS56041 China Mobile communications corporation, in the routed prefix 39.172.0.0/16.

Current ASN: AS56041; China Mobile communications corporation
Routed prefix: 39.172.0.0/16; Most specific route covering this prefix
ASNs over time: 2; 2 announcement records
RIR allocation: APNIC; China · 39.128.0.0/10

Routing data · Nov 8, 2026, 10:26 UTC

ASN historyEvery routed prefix covering 39.172.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
39.172.0.0/16	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.128.0.0/10	AS9808	China Mobile Communications Group Co., Ltd.	China	Before monitoring	2026-11-08 10:26	Announcing

More specific routes39 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
39.172.0.0/20	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.16.0/20	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.20.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.32.0/21	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.40.0/21	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.48.0/20	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.57.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.64.0/18	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.69.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.84.0/24	AS56041	China Mobile communications corporation	China	2026-11-05 18:22	2026-11-08 10:26	Announcing
39.172.88.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.96.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.105.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.109.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.113.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.117.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.119.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.127.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.128.0/21	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.136.0/22	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.140.0/22	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.144.0/20	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.156.0/23	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.158.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.160.0/20	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.176.0/22	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.180.0/22	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.182.0/23	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.184.0/21	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.191.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.192.0/20	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.208.0/22	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.212.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.213.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.214.0/23	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.216.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.222.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.223.0/24	AS56041	China Mobile communications corporation	China	Before monitoring	2026-11-08 10:26	Announcing
39.172.224.0/19	AS56041	China Mobile communications corporation	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.

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RIR allocation record

Registry: APNIC
Allocated block: 39.128.0.0/10
Country: China
Allocation date: 2011-04-01
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.