Skip to content
KYNEXBGP Toolkit
FIRST-MANHATTAN - First Manhattan Co. logo

AS40397

FIRST-MANHATTAN - First Manhattan Co.

United States (US)

ASN Information

AS NumberAS40397
AS NameFIRST-MANHATTAN
OrganizationFIRST-MANHATTAN - First Manhattan Co.
Also known asNot available
CountryUnited States (US)
RegistryARIN
ASN TypeNot available
Last Seen
Announcement Count1
IPv4 Prefix Count1
IPv6 Prefix Count0
RPKI StatusNotFound ×1
IRR RecordsView IRR route objects
WebsiteNot available

AS Path to AS40397

  1. 199524GCORE G-Core Labs S.A.
  2. 174COGENT-174 - Cogent Communications, LLC
  3. 40397Origin

Most common path, seen 4× in route collector data, latest at a collector in Singapore (2026-10-17 09:07:15 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 16 peer session(s)Johannesburg: 17 peer session(s)Singapore: 20 peer session(s)Amsterdam: 23 peer session(s)London: 28 peer session(s)Eugene, OR: 55 peer session(s)
High (10+ peers)Medium (3–9)Low (1–2)

Approximate route collector locations, coloured by peer sessions carrying this AS's routes.

Announced Prefixes (1)

View All →
PrefixFamilyRPKILast Seen
65.199.161.0/24IPv4NotFoundNot looked up yet

Peers (1)

View All →
ASNameRelationshipPathsLast Seen
AS174COGENT-174 - Cogent Communications, LLCUpstream (inferred)170

Neighbours seen next to AS40397 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.

Public Peering Exchange Points (0)

IX Updates →

No Internet Exchange ports are registered for AS40397.

IX ports registered by AS40397 (self-reported by the network).

Interconnection Facilities (0)

No interconnection facilities are registered for AS40397.

Data centres where AS40397 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETNot available
Member of AS-SETsSee IRR page
Peering policyNot available
Multiple locationsNot available
Ratio requirementNot available
ContractNot available
TrafficNot available
Traffic ratioNot available
Geographic scopeNot available
Max prefixes (IPv4 / IPv6)Not available
Unicast / IPv6 / MulticastNot available
Looking glassNot available
Route serverNot available

Contact Information (0)

No public contacts are registered for AS40397.

Only contacts the network has chosen to publish are shown.

Upstreams (1)

ASNameRelationshipPathsLast Seen
AS174COGENT-174 - Cogent Communications, LLCUpstream (inferred)170

Downstreams (0)

No downstream ASNs found for AS40397 in current data sources.

Registry and network details

Registered holderFIRST-MANHATTAN - First Manhattan Co.
RegisteredYes
Peering policyNot available
IRR AS-setNot available
Registry record last modifiedNot available
MaintainersNot available
Internet exchangesNot available
FacilitiesNot available
Network profile updatedNot available

Data updated . See limitations.