Home Prefix Lookup83.138.8.0/21

83.138.8.0/21 - WEBWORLD Sternforth . Trading As WebWorld (AS30900)

IPv4RIPE NCCallocatedAS30900WEBWORLD-AS Sternforth Ltd. trading as WebWorldNo ROA

CIDR

83.138.8.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇮🇪 Ireland

City

Tallaght

RIR

RIPE NCC

Status

allocated

Allocated

2004-07-15

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
83.138.8.0/21	AS30900 WEBWORLD-AS Sternforth Ltd. trading as WebWorld	No ROA	RIPE	2026-10-11

More-Specific Announcements

1 more-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
83.138.15.0/24	AS30900 WEBWORLD-AS Sternforth Ltd. trading as WebWorld	No ROA	-	2026-10-11

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS30900	RIPE	WEBHOST-MNT	2019-10-29

More Specific Prefixes

Prefix	AS	Country	Status
83.138.8.128/25		🇮🇪IE	assigned
83.138.12.192/28		🇮🇪IE	assigned
83.138.12.208/28		🇮🇪IE	assigned
83.138.12.224/28		🇮🇪IE	assigned
83.138.12.240/28		🇮🇪IE	assigned
83.138.13.16/28		🇮🇪IE	assigned
83.138.13.32/27		🇮🇪IE	assigned
83.138.13.64/27		🇮🇪IE	assigned
83.138.13.96/28		🇮🇪IE	assigned
83.138.13.112/28		🇮🇪IE	assigned
83.138.13.128/27		🇮🇪IE	assigned
83.138.13.160/27		🇮🇪IE	assigned
83.138.14.1/32		🇮🇪IE	assigned
83.138.14.2/31		🇮🇪IE	assigned
83.138.14.4/30		🇮🇪IE	assigned
83.138.14.8/29		🇮🇪IE	assigned
83.138.14.16/28		🇮🇪IE	assigned
83.138.14.32/27		🇮🇪IE	assigned
83.138.14.64/26		🇮🇪IE	assigned
83.138.14.128/25		🇮🇪IE	assigned
83.138.15.0/24	AS30900	🇮🇪IE	assigned

Transfer History

Registry transfers of 83.138.8.0/21, blocks inside it, or blocks containing it.

83.138.8.0/21M&A · 2020-08-21
WebHost.ie Limited
RIPE NCC
→
Sternforth Ltd.
RIPE NCC

Date	Resource	From	To	Type
2020-08-21	83.138.8.0/21	WebHost.ie Limited RIPE NCC	Sternforth Ltd. RIPE NCC	M&A

Origin ASN

AS30900

WEBWORLD-AS Sternforth Ltd. trading as WebWorld

Related Prefixes

More prefixes of AS30900

All prefixes of AS30900 →

Geolocation

Country🇮🇪IrelandIE

RegionLeinster

CityTallaght

Coordinates53.2789, -6.3764 ↗

Abuse Contact

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 RIPE NCC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/83.138.8.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/83.138.8.0/21" | jq

External Links

RIPEstat