205.198.0.0/15

Currently announced by AS174 Cogent Communications, Inc., in the routed prefix 205.198.0.0/15.

Current ASN: AS174; Cogent Communications, Inc.
Routed prefix: 205.198.0.0/15; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: ARIN; United States · 205.198.0.0/15

Routing data · Nov 1, 2026, 22:23 UTC

ASN historyEvery routed prefix covering 205.198.0.0/15

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
205.198.0.0/15	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing

More specific routes109 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
205.198.0.0/19	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.0.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.1.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.2.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.3.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.4.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.5.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.6.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.7.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.8.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.9.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.10.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.11.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.15.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.19.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.22.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.24.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.25.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.26.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.27.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.28.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.29.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.30.0/24	AS133847	Anpple Tech Enterprise	Malaysia	Before monitoring	2026-11-01 22:23	Announcing
205.198.32.0/21	AS40198	MATI	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.40.0/24	AS147019	jiii	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.41.0/24	AS147019	jiii	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.42.0/24	AS147019	jiii	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.43.0/24	AS134963	Alibaba Cloud (Singapore) Private Limited	Singapore	Before monitoring	2026-11-01 22:23	Announcing
205.198.43.0/24	AS147019	jiii	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.44.0/24	AS147019	jiii	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.45.0/24	AS134963	Alibaba Cloud (Singapore) Private Limited	Singapore	Before monitoring	2026-11-01 22:23	Announcing
205.198.45.0/24	AS147019	jiii	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.46.0/24	AS134963	Alibaba Cloud (Singapore) Private Limited	Singapore	Before monitoring	2026-11-01 22:23	Announcing
205.198.46.0/24	AS147019	jiii	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.47.0/24	AS134963	Alibaba Cloud (Singapore) Private Limited	Singapore	Before monitoring	2026-11-01 22:23	Announcing
205.198.47.0/24	AS147019	jiii	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.48.0/20	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.48.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.49.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.50.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.51.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.52.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.53.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.54.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.55.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.56.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.57.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.58.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.59.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.60.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.61.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.62.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.63.0/24	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.64.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.65.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.66.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.67.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.68.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.69.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.70.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.71.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.72.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.73.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.74.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.75.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.76.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.77.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.78.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.79.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.80.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.81.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.82.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.83.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.84.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.85.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.86.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.87.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.88.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.89.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.90.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.91.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.92.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.93.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.94.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.95.0/24	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.96.0/21	AS7131	IT&E Overseas	Northern Mariana Islands	Before monitoring	2026-11-01 22:23	Announcing
205.198.104.0/23	AS174	Cogent Communications, Inc.	United States	2026-10-31 02:18	2026-11-01 22:23	Announcing
205.198.106.0/23	AS174	Cogent Communications, Inc.	United States	2026-10-31 02:18	2026-11-01 22:23	Announcing
205.198.108.0/24	AS140570	Hong Kong Beecloud	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.109.0/24	AS140570	Hong Kong Beecloud	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.110.0/24	AS140570	Hong Kong Beecloud	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.111.0/24	AS140570	Hong Kong Beecloud	Hong Kong SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.112.0/21	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.112.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.113.0/24	AS398704	Stacks Inc.	United States	2026-10-25 18:20	2026-11-01 22:23	Announcing
205.198.114.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.115.0/24	AS153560	STACKS NETWORK	Singapore	Before monitoring	2026-11-01 22:23	Announcing
205.198.116.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.117.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.119.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.120.0/22	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.120.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.121.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.122.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.124.0/23	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.125.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.126.0/23	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.126.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing
205.198.127.0/24	AS398704	Stacks Inc.	United States	Before monitoring	2026-11-01 22:23	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: 205.198.0.0/15
Country: United States
Allocation date: 1995-03-30
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.