Data as of Nov 12, 2026
206.233.192.0/19
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@ |
| └ 206.233.192.0/24 | 256 | NETBLK-PSINET-C-192 | unknown | — | — | — |
| └ 206.233.195.0/24 | 256 | NTBLK-PSINET-C-195 | unknown | — | — | — |
| └ 206.233.196.0/24 | 256 | NETBLK-PSINET-C-196 | unknown | — | — | — |
| └ 206.233.197.0/24 | 256 | NETBLK-PSINET-C-197 | unknown | — | — | — |
| └ 206.233.199.0/24 | 256 | NTBLK-PSINET-C-199 | unknown | — | — | — |
| └ 206.233.200.0/24 | 256 | NETBLK-PSINET-CA | unknown | — | — | — |
| └ 206.233.204.0/24 | 256 | NETBLK-PSINET-C-204 | unknown | — | — | — |
| └ 206.233.205.0/24 | 256 | NETBLK-PSINET-C-205 | unknown | — | — | — |
| └ 206.233.206.0/24 | 256 | NETBLK-PSINET-C-206 | unknown | — | — | — |
| └ 206.233.207.0/24 | 256 | NETBLK-PSINET-C-207 | unknown | — | — | — |
| └ 206.233.210.0/24 | 256 | NETBLK-PSINET-C-210 | unknown | — | — | — |
| └ 206.233.211.0/24 | 256 | NETBLK-PSINET-C-211 | unknown | — | — | — |
| └ 206.233.212.0/24 | 256 | NETBLK-PSINET-C-212 | unknown | — | — | — |
| └ 206.233.213.0/24 | 256 | NETBLK-PSINET-C-213 | unknown | — | — | — |
| └ 206.233.220.0/24 | 256 | NETBLK-PSINET-C-220 | unknown | — | — | — |
| └ 206.233.221.0/24 | 256 | NETBLK-PSINET-C-221 | unknown | — | — | — |
| └ 206.233.222.0/24 | 256 | NETBLK-PSINET-C-222 | unknown | — | — | — |
| └ 206.233.223.0/24 | 256 | NETBLK-PSINET-C-223 | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
8,192 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 4,608 | 56% | 18 | |
| Unknown | 3,584 | 44% | 5 |
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
- First seen
- Before our records
- Origin networks
- 0
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