Data as of Nov 14, 2026
38.183.90.0/24
1 residential-proxy exit · 30 daysMaster Fibra Telecom · space held by Cogent Communications, LLC
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
9
selling exits here
Oct 15, 2026 – Nov 13, 2026
Exits seen per day
14 observations
Proxy providers listing exits
- 9Proxy
- HideProxy
- InfiniteProxies
- LudaxProxy
- ProxiesVision
- ProxyGeo
- SPYDERPROXY_BASIC
- VantageProxies
- ZENPROXY_PREMIUM
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | AS174 | Internet provider | IP broker Rackdog (part) | 397,758 74,175 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.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | 16,777,216 | COGENT-A | Cogent Communications, LLC (COGC) · US | Direct Allocation | Apr 16, 1991 | abuse@ |
| └ 38.183.90.0/24 | 256 | MASTER-FIBRA-TELECOM-CGNT-NET-1 | BHT Telecomunicacoes LTDA / Master Fibra Telecom (C11623396) · BR | Reassigned | Jun 16, 2026 | abuse@ via COGENT-A |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 38.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Apr 16, 1991
- Legacy
- yes
Origin network
AS274594
BR
- Name
- Master Fibra Telecom
- Type
- Internet provider
- Registered
- Aug 7, 2024
- Domain
- vemsermaster.com.br
- Website
- vemsermaster.com.br
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Nov 2023
- Current origin since
- Aug 2024 · 2.2 yr
- Origin networks
- 2
- Last change of origin
- Aug 2024
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS274594 | RADB | Registered for Cogent Communications Customer - MASTER FIBRA TELECOM | MAINT-AS174 | Jan 20, 2025 |
Whois
Registration for this announcement
- Range
- 38.
183. 90. 0/ 24 - Netname
- MASTER-FIBRA-TELECOM-CGNT-NET-1
- Registrant
- BHT Telecomunicacoes LTDA / Master Fibra Telecom
- Organization
- BHT Telecomunicacoes LTDA / Master Fibra Telecom (C11623396)
- Type
- Reassigned
- Handle
- NET-38-183-90-0-1
- Parent
- NET-38-0-0-0-1
- Created
- Jun 16, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN