Data as of Nov 9, 2026
209.146.105.0/24
No anonymizer space · no proxy exits in 30 daysAperture Science Limited · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 209.146.0.0/17 since May 2005 | AS174 | Internet provider | 59 13 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 |
|---|---|---|---|---|---|---|
| 209.146.0.0/17 | 32,768 | COGENT-IDCI-0001 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Oct 3, 1997 | abuse@ |
| └ 209.146.104.0/23 | 512 | APERNET-CGNT-NET-1 | Aperture Science LLC (ASL-461) · HK | Reallocated | Aug 24, 2022 | — |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 209.
146. 0. 0/ 17 - Registration type
- Direct Allocation
- Record created
- Oct 3, 1997
- Legacy
- yes
- Reallocated to
- Aperture Science LLC (ASL-461)
- Reallocated range
- 209.
146. 104. 0/ 23 - Reallocated
- Aug 24, 2022
Origin network
AS38008
HK
- Name
- Aperture Science Limited
- Type
- Hosting
- Registered
- Jun 15, 2020
- Domain
- apernet.io
- Website
- apernet.io
- Industry
- Other
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2022
- Current origin since
- May 2024 · 2.5 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS38008 | ALTDB | AperNet HKG; Cogent leased block. | MNT-APERNET | May 2, 2022 |
Whois
Registration for this announcement
- Range
- 209.
146. 104. 0/ 23 - Netname
- APERNET-CGNT-NET-1
- Registrant
- Aperture Science LLC
- Organization
- Aperture Science LLC (ASL-461)
- Org address
- Unit 83, 3/F, Yau Lee Center, Hong Kong
- Org country
- HK
- Type
- Reallocated
- Handle
- NET-209-146-104-0-1
- Parent
- NET-209-146-0-0-1
- Created
- Aug 24, 2022
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 3, 1997
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN