Data as of Nov 6, 2026
154.18.161.0/24
No anonymizer space · no proxy exits in 30 daysHytron Network Services Limited · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 154.18.0.0/15 since Oct 2008 | AS174 | Internet provider | 877 177 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 |
|---|---|---|---|---|---|---|
| 154.18.0.0/16 | 65,536 | COGENT-154-18-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Feb 5, 1992 | abuse@ |
| └ 154.18.161.0/24 | 256 | HYTRON-CGNT-NET-2 | Hytron Network Services Limited (C09157900) · HK | Reassigned | Jan 23, 2023 | abuse@ via COGENT-154-18-16 |
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.
18. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Feb 5, 1992
- Legacy
- yes
Origin network
AS202662
HK
- Name
- Hytron Network Services Limited
- Type
- Hosting
- Registered
- Sep 28, 2022
- Domain
- hytron.io
- Website
- www.hytron.io
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2020
- Current origin since
- Feb 2023 · 3.7 yr
- Origin networks
- 2
- Last change of origin
- Feb 2023
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS17433 not the origin | RADB | Proxy-registered route object | MAINT-AS9304 | Aug 18, 2025 |
| AS17433 not the origin | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Aug 18, 2025 |
| AS202662 | RADB | Route Registered for Cogent Communications Customer - Hytron Network Services Limited | MAINT-AS174 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 154.
18. 161. 0/ 24 - Netname
- HYTRON-CGNT-NET-2
- Registrant
- Hytron Network Services Limited
- Organization
- Hytron Network Services Limited (C09157900)
- Type
- Reassigned
- Handle
- NET-154-18-161-0-1
- Parent
- NET-154-18-0-0-1
- Created
- Jan 23, 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