Data as of Nov 8, 2026
148.109.25.0/24
No anonymizer space · no proxy exits in 30 daysCOLT Technology Services Group Limited · space held by Colt Technology Services GK
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 148.109.0.0/16 since Nov 2022 | AS8220 | Internet provider | 11 | Colt Technology Services GK |
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 |
|---|---|---|---|---|---|---|
| 148.109.0.0/16 | 65,536 | CTSCL-JP | Colt Technology Services GK (ORG-CTSC1-AP) · JP | ALLOCATED PORTABLE | — | abuse@ |
| └ 148.109.0.0/18 | 16,384 | CTSCL-JP | unknown | ALLOCATED NON-PORTABLE | — | abuse@ |
| └ 148.109.25.0/24 | 256 | NET-JP-Tata-Communications | Tata Communications (Japan) K.K. | ASSIGNED NON-PORTABLE | — | abuse@ |
Network & registry
Registry
Holder
- Organization
- Colt Technology Services GK
- Handle
- ORG-CTSC1-AP
- Range
- 148.
109. 0. 0/ 16 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Not named in the registry
- Reallocated range
- 148.
109. 0. 0/ 18 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS8220
GB
- Name
- COLT Technology Services Group Limited
- Type
- Internet provider
- Registered
- Feb 24, 1997
- Domain
- colt.net
- Website
- www.colt.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
- Sep 2024
- Current origin since
- Sep 2024 · 2.1 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 148.109.25.0/24 | AS8220 | /24 | APNIC | RPKI valid |
| 148.109.0.0/16 | AS8220 | /16 | APNIC | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS8220 | APNIC | TATA IZO | MAINT-CTSCL-JP | Mar 19, 2024 |
Whois
Registration for this announcement
- Range
- 148.
109. 25. 0/ 24 - Netname
- NET-JP-Tata-Communications
- Registrant
- Tata Communications (Japan) K.K.
- Registrant country
- JP
- Organization
- Tata Communications (Japan) K.K.
- Org country
- JP
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Dec 22, 2023
- Maintainer
- MAINT-CTSCL-JP
- RIR
- APNIC
- Country
- JP
- Delegated
- Mar 22, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
colt. net - Name
- ABUSE CTSCLJP
- Handle
- AC2582-AP