Data as of Nov 8, 2026
104.153.128.0/21
No anonymizer space · no proxy exits in 30 daysColumbus Telecommunications (Barbados) Limited
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 104.153.128.0/23 since Nov 2016 | AS14813 | Residential | Columbus Telecommunications (Barbados) Limited |
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 |
|---|---|---|---|---|---|---|
| 104.153.128.0/21 | 2,048 | COL-BB-4 | Columbus Telecommunications (Barbados) Limited (CTBL) · BB | Direct Allocation | Aug 1, 2014 | cwc-csirt@ |
| └ 104.153.128.0/24 | 256 | COL-BB-4 | unknown | — | — | — |
| └ 104.153.129.0/24 | 256 | COL-BB-4 | unknown | — | — | — |
| └ 104.153.130.0/24 | 256 | COL-BB-4 | unknown | — | — | — |
| └ 104.153.131.0/24 | 256 | COL-BB-4 | unknown | — | — | — |
| └ 104.153.132.0/24 | 256 | COL-BB-4 | unknown | — | — | — |
| └ 104.153.133.0/24 | 256 | COL-BB-4 | unknown | — | — | — |
| └ 104.153.134.0/24 | 256 | COL-BB-4 | unknown | — | — | — |
| └ 104.153.135.0/24 | 256 | COL-BB-4 | unknown | — | — | — |
Network & registry
Origin network
AS14813
BB
- Name
- Columbus Telecommunications (Barbados) Limited
- Type
- Internet provider
- Registered
- Mar 15, 2007
- Domain
- discoverflow.co
- Website
- discoverflow.co
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2014
- Current origin since
- Aug 2014 · 12 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS14813 | RADB | COLUMBUS NETWORKS TRANSIT CUSTOMERS | MAINT-AS23520 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 104.
153. 128. 0/ 21 - Netname
- COL-BB-4
- Registrant
- Columbus Telecommunications (Barbados) Limited
- Organization
- Columbus Telecommunications (Barbados) Limited (CTBL)
- Org address
- 6th Floor, CGI Towers, Warrens, St. Michael, BB12001
- Org country
- BB
- Type
- Direct Allocation
- Handle
- NET-104-153-128-0-1
- Parent
- NET-104-0-0-0-0
- Created
- Aug 1, 2014
- RIR
- ARIN
- Country
- BB
- Delegated
- Aug 1, 2014
- Status
- assigned
Report abuse
Abuse contact
- cwc-csirt@
cwc. com - Name
- CWC-CSIRT
- Phone
- +4291401;ext2
- Handle
- CWCCS-ARIN