205.198.48.0/20

Currently announced by AS133613 MTel telecommunication company, in the routed prefix 205.198.48.0/20.

Current ASN: AS133613; MTel telecommunication company
Routed prefix: 205.198.48.0/20; Most specific route covering this prefix
ASNs over time: 2; 2 announcement records
RIR allocation: ARIN; United States · 205.198.0.0/15

Routing data · Nov 1, 2026, 22:23 UTC

ASN historyEvery routed prefix covering 205.198.48.0/20

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
205.198.48.0/20	AS133613	MTel telecommunication company	Macao SAR China	Before monitoring	2026-11-01 22:23	Announcing
205.198.0.0/15	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-01 22:23	Announcing

More specific routes16 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
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

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.