Data as of Nov 7, 2026
38.4.170.0/23
No anonymizer space · no proxy exits in 30 daysLastnet Telecom · space held by Cogent Communications, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin Oct 22, 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 38.4.168.0/21 since Oct 22, 2026 | AS273595 | Residential | 51 | Cogent Communications, LLC | ||
| 38.0.0.0/8 | AS174 | Internet provider | IP broker Rackdog (part) | 404,266 78,035 always on | Cogent Communications, LLC |
Network & registry
Origin network
AS273595
BR
- Name
- Lastnet Telecom
- Type
- Internet provider
- Registered
- Sep 30, 2022
- Domain
- lastnet.com.br
- Website
- www.lastnet.com.br
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 22, 2026
- Current origin since
- Oct 22, 2026 · under a month
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 38.4.168.0/21 | AS273595 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 38.
0. 0. 0/ 8 - Netname
- COGENT-A
- Registrant
- Cogent Communications, LLC
- Organization
- Cogent Communications, LLC (COGC)
- Org address
- 2450 N Street NW, Washington, DC, 20037
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-38-0-0-0-1
- Created
- Apr 16, 1991
- 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