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Data as of Nov 7, 2026

208.28.176.0/24

No anonymizer space · no proxy exits in 30 days

Network Synergy Corporation · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS19643
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
208.0.0.0/11AS174Internet provider609
180 always on
Cogent Communications, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
208.0.0.0 - 208.35.255.2552,359,296COGCCogent Communications, LLC (COGC) · USDirect AllocationMar 13, 1996abuse@cogentco.com
└ 208.28.176.0/24256SPRINT-D01CB0Network Synergy (NETWOR-18) · USReassignedOct 23, 1997—

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
208.0.0.0 - 208.35.255.255
Registration type
Direct Allocation
Record created
Mar 13, 1996
Legacy
yes
Origin network

AS19643

US
Name
Network Synergy Corporation
Type
Business
Registered
Jan 29, 2001
Domain
netsynergy.com
Industry
Computer and Information Technology
Spamhaus ASN-DROP
not listed