Data as of Nov 14, 2026
206.233.185.0/24
No anonymizer space · no proxy exits in 30 daysGTT Communications Inc. · space held by Cogent Communications, LLC
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Nov 3, 2026
from AS139646 Hong Kong Lightlayer Technology Co., Limited
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 206.232.0.0/14 since May 2005 | AS174 | Internet provider | IP broker Aventice (part) | 255 195 always on | Cogent Communications, LLC |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 206. | 458,752 | COGENT-206-232-233-234-235-236-237-238-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Nov 6, 1995 | abuse@ |
| └ 206.233.185.0/24 | 256 | NETBLK-PSINET-C-185 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 206.233.128.0/17
- Prefix
- 206.233.128.0/17
- Announced by
- AS3257 GTT Communications Inc.
- Type
- Unknown
- RPKI
- RPKI valid
- Netname
- COGENT-206-232-233-234-235-236-237-238-16
- Registrant
- Cogent Communications, LLC
- RIR
- ARIN
Origin network
AS3257
US
- Name
- GTT Communications Inc.
- Type
- Internet provider
- Registered
- Sep 30, 1994
- Domain
- gtt.net
- Website
- www.gtt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 363
Routing timeline
Covering aggregate above, the prefix's own history below
206.233.128.0/17
Routing history
- Pattern
- Rotating
- First seen
- Jan 2022
- Current origin since
- Nov 3, 2026 · under a month
- Origin networks
- 2
- Last change of origin
- Nov 3, 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 206.233.128.0/17 | AS3257 | /17 | ARIN | RPKI valid |
| 206.233.128.0/17 | AS399089 | /17 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 206.
232. 0. 0 - 206. 238. 255. 255 - Netname
- COGENT-206-232-233-234-235-236-237-238-16
- 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-206-232-0-0-1
- Parent
- NET-206-0-0-0-0
- Created
- Nov 6, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 6, 1995
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN