asn.dev

Autonomous system

AS37540 WINROCK-

Hosting APNIC

IPv4 addresses 1.54K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly NG
Exchanges 0 recorded by PCH
Upstreams 3 3 downstream
Flagged prefixes 0 none

Summary

Winrock Nigeria Limited

Nigeria · AI-generated

business broadband engineering nigerian

The AS handle WINROCK- is held by Winrock Nigeria Limited.

What it's used for

  • The address space is registered under the netname ORG-WNL1-AFRINIC for both announced IPv4 prefixes, indicating a single corporate entity managing its own infrastructure.
  • With 1536 IPv4 addresses and 1 IPv6 prefix announced against only 4 observed neighbours, the ratio suggests a small-scale access or business network rather than a transit provider.

Notable

  • The registrants for both the 41.207.248.0/22 and 102.220.44.0/23 prefixes match the AS holder, Winrock Nigeria Limited.
  • The address inventory consists of two distinct IPv4 blocks and one IPv6 /32, reflecting a modest footprint typical of a regional service provider.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 3 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS37662West Indian Ocean Cable Company593
AS36940Internet Exchange Point of Nigeria54
AS37148Globacom Limited3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 1.54K addresses IPv6 1 prefixes

CountryNamePrefixes
NGNigeria3

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS37540
Registry name
ORG-WNL1-AFRINIC
Registrant
Winrock Nigeria Limited
Registered
2012-12-21
Last changed
2019-03-25
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 10 with no ROA
ROAs
0 authorising AS37540
ASPA
no ASPA record
IRR
100% registered · 10 of 10 announcements
Route objects
18 naming AS37540

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,781 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check