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Data as of Nov 5, 2026

154.45.251.72/29

No anonymizer space · no proxy exits in 30 days

Limestone Networks, Inc. · reallocated from Cogent Communications, LLC

Announcement
154.45.251.0/24
No RPKI
Announced by
AS46475
Type
Hosting
Risk
50 / 100 · Medium

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsRPKI
154.40.0.0/13
since Sep 2006
AS174Internet provider18,192
1,298 always on

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
154.45.0.0/1665,536COGENT-154-45-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.45.251.0/24256LIMESTONE-NETWORKS-CGNT-NET-10Limestone Networks, Inc. (LIMES-2) · USReallocatedJul 23, 2025abuse@limestonenetworks.com
└ 154.45.251.72/298LSN-DLLSTX-1unknown———

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 154.45.251.0/24

Prefix
154.45.251.0/24
Announced by
AS46475 Limestone Networks, Inc.
Type
Hosting
RPKI
No RPKI
Netname
LIMESTONE-NETWORKS-CGNT-NET-10
Registrant
Limestone Networks, Inc.
RIR
ARIN
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
154.45.0.0/16
Registration type
Direct Allocation
Record created
Feb 5, 1992
Legacy
yes
Reallocated to
Limestone Networks, Inc. (LIMES-2)
Reallocated range
154.45.251.0/24
Reallocated
Jul 23, 2025
Origin network

AS46475

US
Name
Limestone Networks, Inc.
Type
Hosting
Registered
Sep 29, 2008
Domain
limestonenetworks.com
Website
www.limestonenetworks.com
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed
VPN servers
29