Home Prefix Lookup197.255.128.0/21

197.255.128.0/21 - CVTS1 (AS37517)

IPv4AFRINICassignedAS37517CVTS1No ROA

CIDR

197.255.128.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇨🇻 Cabo Verde

City

Ribeira da Vinha

RIR

AFRINIC

Status

assigned

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
197.255.128.0/21	AS37517 CVTS1	No ROA	AFRINIC	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
197.255.128.0/20	AS37517 CVTS1	No ROA	-	2026-10-11

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS37517	AFRINIC	CVTS1-MNT	-

Transfer History

Registry transfers of 197.255.128.0/21, blocks inside it, or blocks containing it.

197.255.128.0/20M&A · 2024-04-15
CV Multimedia SA
🇨🇻 CV AFRINIC
→
CABO VERDE TELECOM, S.A
🇨🇻 CV AFRINIC

Date	Resource	From	To	Type
2024-04-15	197.255.128.0/20	CV Multimedia SA 🇨🇻 CV AFRINIC	CABO VERDE TELECOM, S.A 🇨🇻 CV AFRINIC	M&A

Origin ASN

AS37517

CVTS1

Related Prefixes

Covering prefix

197.255.128.0/20AS37517

More prefixes of AS37517

All prefixes of AS37517 →

Geolocation

Country🇨🇻Cabo VerdeCV

RegionSao Vicente

CityRibeira da Vinha

Coordinates16.8618, -24.9997 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the AFRINIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/197.255.128.0/21

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/197.255.128.0/21" | jq

External Links

RIPEstat