Data as of Nov 15, 2026
31.148.30.0/24
No anonymizer space · no proxy exits in 30 daysOptima Bank OJSC · space held by ALFA TELECOM s.r.o.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 31.148.0.0/16 since Nov 2013 | AS44546 | Residential | 12,156 1,454 always on | ALFA TELECOM s.r.o. |
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 |
|---|---|---|---|---|---|---|
| 31.148.0.0/16 | 65,536 | CZ-ALFATELECOM-20110211 | ALFA TELECOM s.r.o. (ORG-ATS13-RIPE) · CZ | ALLOCATED PA | Feb 11, 2011 | abuse@ |
| └ 31.148.30.0/24 | 256 | OPTIMA-BANK-NET | Optima Bank OJSC (ORG-OBO3-RIPE) · KG | ASSIGNED PA | Nov 25, 2014 | bank@ |
Network & registry
IPv4 market
Holder
- Organization
- ALFA TELECOM s.r.o.
- Handle
- ORG-ATS13-RIPE
- Range
- 31.
148. 0. 0/ 16 - Registration type
- ALLOCATED PA
- Record created
- Feb 11, 2011
Origin network
AS44343
KG
- Name
- Optima Bank OJSC
- Type
- Business
- Registered
- Nov 26, 2014
- Domain
- optimabank.kg
- Industry
- Banks, Credit Card Companies, Mortgage Providers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jan 2015
- Current origin since
- Feb 2017 · 9.8 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 31.148.30.0/24 | AS44343 | /24 | RIPE | RPKI valid |
| 31.148.0.0/16 | AS44546 | /24 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS44343 | RIPE | RIPE-DB-MNT | May 22, 2026 |
Whois
Registration for this announcement
- Range
- 31.
148. 30. 0/ 24 - Netname
- OPTIMA-BANK-NET
- Registrant
- Optima Bank OJSC
- Registrant country
- KG
- Organization
- Optima Bank OJSC (ORG-OBO3-RIPE)
- Org country
- KG
- Type
- ASSIGNED PA
- Created
- Nov 25, 2014
- Updated
- May 22, 2026
- Maintainer
- RIPE-DB-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Feb 11, 2011
- Status
- assigned
Report abuse
Abuse contact
- bank@
optimabank. kg - Name
- Optima Bank OJSC NOC
- Handle
- OBON1-RIPE