Data as of Nov 6, 2026
203.187.145.0/24
No anonymizer space · no proxy exits in 30 daysBritish Telecommunications Limited · space held by Infonet Services Corporation
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.187.128.0/19 since Apr 2006 | AS3300 | Residential | 3 | Infonet Services Corporation |
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 |
|---|---|---|---|---|---|---|
| 203.187.128.0/19 | 8,192 | INFONET-AP-02 | Infonet Services Corporation (ORG-ISC1-AP) · US | ALLOCATED PORTABLE | — | abuse@ |
| └ 203.187.145.0/24 | 256 | BT-GIA-SNG | BT GIA SNG | ALLOCATED NON-PORTABLE | — | abuse@ |
Network & registry
Registry
Holder
- Organization
- Infonet Services Corporation
- Handle
- ORG-ISC1-AP
- Range
- 203.
187. 128. 0/ 19 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- BT GIA SNG
- Reallocated range
- 203.
187. 145. 0/ 24 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS3300
GB
- Name
- British Telecommunications Limited
- Type
- Internet provider
- Registered
- Oct 28, 1994
- Domain
- bt.net
- Website
- www.bt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2017
- Current origin since
- May 2017 · 9.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.187.128.0/19 | AS3300 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3300 | APNIC | Infonet Services Corporation | MAINT-AP-INFONET | Jun 9, 2022 |
Whois
Registration for this announcement
- Range
- 203.
187. 145. 0/ 24 - Netname
- BT-GIA-SNG
- Registrant
- BT GIA SNG
- Registrant country
- HK
- Organization
- BT GIA SNG
- Org country
- HK
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 15, 2022
- Maintainer
- MAINT-AP-INFONET
- RIR
- APNIC
- Country
- US
- Delegated
- Mar 29, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse@
eu. bt. net - Name
- ABUSE INFONETAP
- Handle
- AI330-AP