asn.dev

Autonomous system

AS37001 GTB-AS

Unclassified AFRINIC

IPv4 addresses 1.02K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly NG
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Guaranty Trust Bank

Nigeria · AI-generated

banking corporate nigerian financial

GTB-AS is the autonomous system for Guaranty Trust Bank Plc, a major Nigerian financial institution.

What it's used for

  • The address space is registered to the bank, with netnames ORG-GTBP1-AFRINIC and ORG-IL19-AFRINIC appearing in the inventory.
  • The AS announces 1024 IPv4 addresses across 3 prefixes and maintains 3 observed neighbours, indicating a small, self-contained corporate network rather than a transit or access provider.

Notable

  • Registrants for the largest prefixes include Guaranty Trust Bank Plc and IPARTNERS LIMITED, with one prefix showing unknown registration details.
  • The bank operates under the parent company Guaranty Trust Holding Company Plc (GTCO Plc), which manages its banking and financial services operations.
  • The inventory consists of three distinct IPv4 blocks: 102.210.194.0/23, 41.203.112.0/24, and 41.223.144.0/24, with no IPv6 prefixes announced.

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

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS16284Inq-Digital-Nigeria-AS115
AS3491PCCW Global HK Ltd.59
AS37282MAINONE47
AS19551Incapsula Inc14

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 3 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
NGNigeria3

Registry

Allocation record

AFRINIC · via Atlas (registry + RDAP)
Registry
AFRINIC
Handle
AS37001
Registry name
ORG-GTBP1-AFRINIC
Registrant
Guaranty Trust Bank Plc
Registered
2008-01-09
Last changed
2023-09-26
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS37001
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
5 naming AS37001

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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