Data as of Nov 10, 2026
166.49.239.0/25
No anonymizer space · no proxy exits in 30 daysBritish Telecommunications Limited · space held by communications networking services Private Unlimited Company
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 |
|---|---|---|---|---|---|---|
| 166.49.128.0/17 | 32,768 | BT-IGNITE-GLOBAL-BACKBONE | communications networking services Private Unlimited Company (ORG-CNS54-RIPE) · GB | LEGACY | Jul 9, 2003 | ipadmin@ |
| └ 166.49.239.0/25 | 128 | BT_ | British Telecommunications Limited (ORG-CNS3-RIPE) · GB | LEGACY | Mar 22, 2023 | abuse@ |
| └ 166.49.239.72/29 | 8 | COMPUTACENTER | COMPUTACENTER | LEGACY | Nov 8, 2025 | abuse@ via BT_AS5400_CC33_WB |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
128 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Unknown | 120 | 94% | 2 | |
| Business | 8 | 6.3% | 1 |
Network & registry
Announced by
Covering announcement 166.49.128.0/17
- Prefix
- 166.49.128.0/17
- Announced by
- AS5400 British Telecommunications Limited
- Type
- Unknown
- Proxy exits
- 18
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- BT-IGNITE-GLOBAL-BACKBONE
- Registrant
- communications networking services Private Unlimited Company
- RIR
- RIPE NCC
Origin network
AS5400
GB
- Name
- British Telecommunications Limited
- Type
- Internet provider
- Registered
- Aug 15, 1995
- Domain
- bt.net
- Website
- www.bt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 166.49.128.0/17
166.49.128.0/17
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Oct 2016 · 10 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 166.49.128.0/17 | AS5400 | /17 | RIPE | RPKI valid |
IRR
Route objects on 166.49.128.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS5400 | RIPE | BT Global Networks | CIP-MNT | Jan 4, 2007 |
Whois
Registration for this announcement
- Range
- 166.
49. 128. 0/ 17 - Netname
- BT-IGNITE-GLOBAL-BACKBONE
- Registrant
- communications networking services Private Unlimited Company
- Registrant country
- GB
- Organization
- communications networking services Private Unlimited Company (ORG-CNS54-RIPE)
- Org country
- GB
- Type
- LEGACY
- Created
- Jul 9, 2003
- Updated
- Jul 23, 2024
- Maintainer
- cip-mnt
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Mar 24, 1993
- Status
- assigned
Report abuse
Abuse contact
- ipadmin@
bt. com - Name
- Abuse contact role object
- Handle
- ACRO56759-RIPE