ASN AS13431 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS13431?

AS13431 is listed under Millennium Partners, L.P..

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS13431 Millennium Partners, L.P.

ASN Lookup Tool

Millennium Partners, L.P. mlp.com

US 18 Routes

AS Data

AS13431

AS13431 – Millennium Partners, L.P.

AS Number	13431
AS Name	MILLENNIUM-AS
Organization	Millennium Partners, L.P. (mpl-48)
Country	US
Website	mlp.com
Number of IPv4 Routes	18
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1999-06-04

ASN Intelligence API for production workflows

Use ASN data for AS13431 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
174.138.224.0/24	AS13431	Millennium Partners, L.P.	Millennium Partners, L.P.	256
174.138.226.0/23	AS13431	Millennium Partners, L.P.	Millennium Partners, L.P.	512
202.177.200.112/28	AS13431	Millennium Partners, L.P.	Millennium Capital Management Hong Kong Ltd.	16
208.34.186.0/24	AS13431	Millennium Partners, L.P.	MILLENIUM PARTNERS, L.P.	256
192.104.153.0/24	AS13431	Millennium Partners, L.P.	Millennium Partners, L.P.	256
209.66.103.0/24	AS13431	Millennium Partners, L.P.	Zayo Customer	256
174.138.228.0/24	AS13431	Millennium Partners, L.P.	Millennium Partners, L.P.	256
174.138.230.0/24	AS13431	Millennium Partners, L.P.	Millennium Partners, L.P.	256
174.138.231.0/24	AS13431	Millennium Partners, L.P.	Millennium Partners, L.P.	256
204.212.175.0/24	AS13431	Millennium Partners, L.P.	MILLENIUM PARTNERS, L.P.	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       13431
ASName:         MILLENNIUM-AS
ASHandle:       AS13431
RegDate:        1999-06-04
Updated:        2021-03-30
Ref:            https://rdap.arin.net/registry/autnum/13431


OrgName:        Millennium Partners, L.P.
OrgId:          MPL-48
Address:        399 Park Avenue
Address:        6th Floor
City:           New York
StateProv:      NY
PostalCode:     10022
Country:        US
RegDate:        1999-06-04
Updated:        2026-01-06
Ref:            https://rdap.arin.net/registry/entity/MPL-48


OrgTechHandle: JEANG-ARIN
OrgTechName:   Jean-Gilles, Michelet 
OrgTechPhone:  +1-212-708-4100 
OrgTechEmail:  networkadmin@mlp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JEANG-ARIN

OrgNOCHandle: MNO44-ARIN
OrgNOCName:   Millenium Network Operations
OrgNOCPhone:  +1-212-841-6383 
OrgNOCEmail:  networkadmin@mlp.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/MNO44-ARIN

OrgAbuseHandle: MARC-ARIN
OrgAbuseName:   Millenium Abuse Reponse Center
OrgAbusePhone:  +1-212-841-4141 
OrgAbuseEmail:  abuse@mlp.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MARC-ARIN

RTechHandle: JEANG-ARIN
RTechName:   Jean-Gilles, Michelet 
RTechPhone:  +1-212-708-4100 
RTechEmail:  networkadmin@mlp.com
RTechRef:    https://rdap.arin.net/registry/entity/JEANG-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "13431",
    "as_handle" : "AS13431",
    "as_name" : "MILLENNIUM-AS",
    "tech_contacts" : [ "JEANG-ARIN", "JEANG-ARIN" ],
    "abuse_contacts" : [ "MARC-ARIN" ],
    "date_created" : "1999-06-04",
    "date_updated" : "2021-03-30",
    "source" : "https://rdap.arin.net/registry/autnum/13431"
  } ],
  "organization" : {
    "handle" : "MPL-48",
    "name" : "Millennium Partners, L.P.",
    "address" : [ "399 Park Avenue", "6th Floor", "New York", "NY", "10022", "US" ],
    "street" : "Park Avenue",
    "city" : "New York",
    "state" : "NY",
    "zip_code" : "10022",
    "country" : [ "US" ],
    "date_created" : "1999-06-04",
    "date_updated" : "2026-01-06",
    "source" : "https://rdap.arin.net/registry/entity/MPL-48",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "JEANG-ARIN",
    "name" : "Jean-Gilles, Michelet",
    "email" : [ "networkadmin@mlp.com" ],
    "phone" : [ "+1-212-708-4100" ],
    "source" : "https://rdap.arin.net/registry/entity/JEANG-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "MARC-ARIN",
    "name" : "Millenium Abuse Reponse Center",
    "email" : [ "abuse@mlp.com" ],
    "phone" : [ "+1-212-841-4141" ],
    "source" : "https://rdap.arin.net/registry/entity/MARC-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS46887	Crown Castle Fiber LLC	US
AS7018	AT&T Enterprises, LLC	US
AS8220	COLT Technology Services Group Limited	GB
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	NL
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS701	Verizon Business/UUnet	US
AS4637	Telstra Global	HK
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS3758	SingNet Pte Ltd	SG
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS46887	Crown Castle Fiber LLC	US
AS8220	COLT Technology Services Group Limited	GB
AS7018	AT&T Enterprises, LLC	US
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS4637	Telstra International Limited	HK
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US