Data as of Nov 11, 2026
201.237.0.0/24
No anonymizer space · no proxy exits in 30 daysInstituto Costarricense de Electricidad y Telecom.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 201.237.0.0/21 since Mar 2022 | AS11830 | Residential | 318 77 always on | |
| 201.237.0.0/16 since May 2005 | AS11830 | Residential | 1,755 84 always on |
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 |
|---|---|---|---|---|---|---|
| 201.237.0.0/16 | 65,536 | — | Instituto Costarricense de Electricidad y Telecom. (CR-ICEY-LACNIC) | allocated | Feb 11, 2005 | vvalverdea@ |
| └ 201.237.0.0/21 | 2,048 | — | ESPARZA (CR-ESPA-LACNIC) | reallocated | Feb 28, 2012 | gspam@ |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS11830
CR
- Name
- Instituto Costarricense de Electricidad y Telecom.
- Type
- Internet provider
- Registered
- Jan 6, 1999
- Domain
- grupoice.com
- Website
- www.grupoice.com
- 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
- Mar 2022
- Current origin since
- Apr 2023 · 3.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 201.237.0.0/16 | AS202 | /24 | LACNIC | Another network |
| 201.237.0.0/16 | AS203 | /24 | LACNIC | Another network |
| 201.237.0.0/16 | AS3356 | /24 | LACNIC | Another network |
| 201.237.0.0/16 | AS11830 | /24 | LACNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 201.
237. 0. 0/ 21 - Netname
- CR-ESPA-LACNIC
- Registrant
- ESPARZA
- Registrant country
- CR
- Organization
- Not stated by the registry
- Type
- reallocated
- Created
- Feb 28, 2012
- RIR
- LACNIC
- Country
- CR
- Delegated
- Feb 11, 2005
- Status
- assigned
Report abuse
Abuse contact
- gspam@
ice. go. cr - Name
- Disenno y Transporte, ICE
- Phone
- +506 20001123 [0000]
- Handle
- REJ