38.248.192.0/18

Currently announced by AS174 Cogent Communications, Inc., in the routed prefix 38.248.192.0/18.

Current ASN: AS174; Cogent Communications, Inc.
Routed prefix: 38.248.192.0/18; Most specific route covering this prefix
ASNs over time: 1; 2 announcement records
RIR allocation: ARIN; United States · 38.0.0.0/8

Routing data · Nov 2, 2026, 00:27 UTC

ASN historyEvery routed prefix covering 38.248.192.0/18

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
38.248.192.0/18	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-02 00:27	Announcing
38.0.0.0/8	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-11-02 00:27	Announcing

More specific routes40 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
38.248.192.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.193.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.194.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.195.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.196.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.197.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.198.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.199.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.200.0/21	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.201.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.202.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.203.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.204.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.205.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.206.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.207.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.208.0/21	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.213.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.214.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.215.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.216.0/23	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.217.0/24	AS214483	FIBERPOWER LLC	United States	2026-10-27 22:19	2026-11-02 00:27	Announcing
38.248.218.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.219.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.220.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.221.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.224.0/22	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.225.0/24	AS214483	FIBERPOWER LLC	United States	2026-10-27 22:19	2026-11-02 00:27	Announcing
38.248.227.0/24	AS214483	FIBERPOWER LLC	United States	2026-10-27 22:19	2026-11-02 00:27	Announcing
38.248.228.0/22	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.230.0/24	AS214483	FIBERPOWER LLC	United States	2026-10-27 22:19	2026-11-02 00:27	Announcing
38.248.232.0/22	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.236.0/22	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.240.0/21	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.248.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.249.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.250.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.251.0/24	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.252.0/22	AS214483	FIBERPOWER LLC	United States	Before monitoring	2026-11-02 00:27	Announcing
38.248.252.0/24	AS214483	FIBERPOWER LLC	United States	2026-10-27 22:19	2026-11-02 00:27	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: ARIN
Allocated block: 38.0.0.0/8
Country: United States
Allocation date: 1991-04-16
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.