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Data as of Nov 7, 2026

204.141.56.0/23

No anonymizer space · no proxy exits in 30 days

ALARMNET · space held by NTT America, Inc.

Announcement

this exact prefix

RPKI valid

Announced by

Type

Business

Risk

0 / 100 · Low

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder	RPKI
204.141.56.0/22 since Feb 2019	AS36136	Business		NTT America, Inc.
204.141.0.0/16 since Aug 2016	AS2914	Internet provider	35 6 always on	NTT America, Inc.

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS36136

US

Name: ALARMNET
Type: Business
Registered: Sep 13, 2005
Domain: alarmnet.com.tr
Industry: Buildings, Repair, Maintenance (Pest Control, Landscaping, Cleaning, Locksmiths, Car Washes, etc)
Spamhaus ASN-DROP: not listed

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
204.141.56.0/22	AS36136	/24	ARIN	RPKI valid
204.141.0.0/16	AS2914	/16	ARIN	Another network

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS36136	NTTCOM	Proxy RO for Resideo	MAINT-NTTCOM-RA	May 24, 2023

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
204.141.56.0/24	AS36136	RADB	Honeywell (Alarmnet)	MAINT-AS27506	Nov 13, 2023
204.141.57.0/24	AS36136	RADB	ALARMNET	MAINT-AS27506	Sep 3, 2025