Data as of Nov 11, 2026
154.52.36.0/24
No anonymizer space · no proxy exits in 30 daysSD1-Telecom SRL · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 154.48.0.0/12 since May 2005 | AS174 | Internet provider | 12,884 2,299 always on |
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 |
|---|---|---|---|---|---|---|
| 154.52.0.0/16 | 65,536 | COGENT-154-52-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Feb 5, 1992 | abuse@ |
| └ 154.52.36.0/24 | 256 | NET-154-52-36-0-1 | SD1 Telecom (C09300654) · BE | Reassigned | Mar 14, 2023 | abuse@ via COGENT-154-52-16 |
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
- 154.
52. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Feb 5, 1992
- Legacy
- yes
Origin network
AS201042
BE
- Name
- SD1-Telecom SRL
- Type
- Internet provider
- Registered
- Nov 30, 2022
- Domain
- sd1.be
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Nov 2021
- Current origin since
- Dec 2022 · 3.9 yr
- Origin networks
- 2
- Last change of origin
- Dec 2022
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS201042 | RADB | Route Registered for Cogent Communications Customer - SD1-Telecom SRL | MAINT-AS174 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 154.
52. 36. 0/ 24 - Netname
- NET-154-52-36-0-1
- Registrant
- SD1 Telecom
- Organization
- SD1 Telecom (C09300654)
- Type
- Reassigned
- Handle
- NET-154-52-36-0-1
- Parent
- NET-154-52-0-0-1
- Created
- Mar 14, 2023
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 5, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN