Data as of Nov 12, 2026
206.233.224.0/20
No anonymizer space · no proxy exits in 30 daysGTT Communications Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 206.233.128.0/17 | AS3257 | Unknown | ||||
| 206.232.0.0/14 since May 2005 | AS174 | Internet provider | IP broker Aventice (part) | 253 195 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 |
|---|---|---|---|---|---|---|
| 206. | 458,752 | COGENT-206-232-233-234-235-236-237-238-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Nov 6, 1995 | abuse@ |
| └ 206.233.224.0/24 | 256 | NETBLK-PSINET-C-224 | unknown | — | — | — |
| └ 206.233.225.0/24 | 256 | NETBLK-PSINET-C-225 | unknown | — | — | — |
| └ 206.233.226.0/24 | 256 | NETBLK-PSINET-C-226 | unknown | — | — | — |
| └ 206.233.227.0/24 | 256 | NETBLK-PSINET-C-227 | unknown | — | — | — |
| └ 206.233.228.0/24 | 256 | NETBLK-PSINET-C-228 | unknown | — | — | — |
| └ 206.233.229.0/24 | 256 | NETBLK-PSINET-C-229 | unknown | — | — | — |
| └ 206.233.231.0/24 | 256 | NETBLK-PSINET-C-231 | unknown | — | — | — |
| └ 206.233.232.0/24 | 256 | NETBLK-PSINET-C-232 | unknown | — | — | — |
| └ 206.233.233.0/24 | 256 | NETBLK-PSINET-C-233 | unknown | — | — | — |
| └ 206.233.234.0/24 | 256 | NETBLK-PSINET-C-234 | unknown | — | — | — |
| └ 206.233.235.0/24 | 256 | NETBLK-PSINET-C-235 | unknown | — | — | — |
| └ 206.233.238.0/24 | 256 | NETBLK-PSINET-C-238 | unknown | — | — | — |
| └ 206.233.239.0/24 | 256 | NETBLK-PSINET-C-239 | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
4,096 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 3,328 | 81% | 13 | |
| Unknown | 768 | 19% | 2 |
Network & registry
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
- 251
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Nov 2021
- Origin networks
- 2
- Last change of origin
- Feb 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 206.233.128.0/17 | AS3257 | /17 | ARIN | Too specific |
| 206.233.128.0/17 | AS399089 | /17 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- Not stated by the registry
- Netname
- COGENT-206-232-233-234-235-236-237-238-16
- Registrant
- Cogent Communications, LLC (COGC)
- Organization
- Not stated by the registry
- Created
- Nov 6, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 6, 1995
- Status
- assigned