ASN AS6307 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS6307?

AS6307 is listed under American Express Company.

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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS6307 American Express Company

American Express Company aexp.com

US 122 Routes

AS Data

AS6307

AS6307 – American Express Company

AS Number	6307
AS Name	AMERICAN-EXPRESS
Organization	American Express Company (americ)
Country	US
Website	aexp.com
Number of IPv4 Routes	122
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1996-02-29

ASN Intelligence API for production workflows

Use ASN data for AS6307 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
139.71.64.0/23	AS6307	American Express Company	American Express Company	512
139.71.86.0/24	AS6307	American Express Company	American Express Company	256
139.71.114.0/24	AS6307	American Express Company	American Express Company	256
139.71.122.0/23	AS6307	American Express Company	American Express Company	512
139.71.6.0/23	AS6307	American Express Company	American Express Company	512
139.71.144.0/24	AS6307	American Express Company	American Express Company	256
139.71.77.0/24	AS6307	American Express Company	American Express Company	256
139.71.182.0/23	AS6307	American Express Company	American Express Company	512
139.71.74.0/24	AS6307	American Express Company	American Express Company	256
139.71.0.0/24	AS6307	American Express Company	American Express Company	256
139.71.105.0/24	AS6307	American Express Company	American Express Company	256
139.71.147.0/24	AS6307	American Express Company	American Express Company	256
139.71.68.0/24	AS6307	American Express Company	American Express Company	256
139.71.23.0/24	AS6307	American Express Company	American Express Company	256
139.71.102.0/24	AS6307	American Express Company	American Express Company	256
139.71.111.0/24	AS6307	American Express Company	American Express Company	256
12.29.101.0/24	AS6307	American Express Company	American Express Company	256
139.71.192.0/24	AS6307	American Express Company	American Express Company	256
12.105.185.0/24	AS6307	American Express Company	AMERICAN EXPRESS	256
139.71.120.0/24	AS6307	American Express Company	American Express Company	256
148.173.90.0/23	AS6307	American Express Company	American Express Company	512
139.71.83.0/24	AS6307	American Express Company	American Express Company	256
139.71.117.0/24	AS6307	American Express Company	American Express Company	256
139.71.71.0/24	AS6307	American Express Company	American Express Company	256
139.71.17.0/24	AS6307	American Express Company	American Express Company	256
139.71.108.0/24	AS6307	American Express Company	American Express Company	256
139.71.92.0/24	AS6307	American Express Company	American Express Company	256
139.71.126.0/24	AS6307	American Express Company	American Express Company	256
139.71.26.0/24	AS6307	American Express Company	American Express Company	256
148.173.101.0/24	AS6307	American Express Company	American Express Company	256
139.71.82.0/24	AS6307	American Express Company	American Express Company	256
139.71.53.0/24	AS6307	American Express Company	American Express Company	256
139.71.28.0/23	AS6307	American Express Company	American Express Company	512
139.71.89.0/24	AS6307	American Express Company	American Express Company	256
139.71.91.0/24	AS6307	American Express Company	American Express Company	256
139.71.52.0/24	AS6307	American Express Company	American Express Company	256
139.71.22.0/24	AS6307	American Express Company	American Express Company	256
139.71.194.0/24	AS6307	American Express Company	American Express Company	256
148.173.88.0/23	AS6307	American Express Company	American Express Company	512
139.71.136.0/24	AS6307	American Express Company	American Express Company	256
139.71.127.0/24	AS6307	American Express Company	American Express Company	256
139.71.185.0/24	AS6307	American Express Company	American Express Company	256
193.32.34.0/24	AS6307	American Express Company	American Express Travel Related Services Company, Inc	256
139.71.10.0/24	AS6307	American Express Company	American Express Company	256
139.71.80.0/24	AS6307	American Express Company	American Express Company	256
139.71.118.0/24	AS6307	American Express Company	American Express Company	256
139.71.109.0/24	AS6307	American Express Company	American Express Company	256
148.173.86.0/24	AS6307	American Express Company	American Express Company	256
139.71.20.0/24	AS6307	American Express Company	American Express Company	256
139.71.9.0/24	AS6307	American Express Company	American Express Company	256
139.71.70.0/24	AS6307	American Express Company	American Express Company	256
139.71.197.0/24	AS6307	American Express Company	American Express Company	256
139.71.176.0/24	AS6307	American Express Company	American Express Company	256
139.71.11.0/24	AS6307	American Express Company	American Express Company	256
139.71.8.0/24	AS6307	American Express Company	American Express Company	256
139.71.50.0/24	AS6307	American Express Company	American Express Company	256
139.71.21.0/24	AS6307	American Express Company	American Express Company	256
139.71.196.0/24	AS6307	American Express Company	American Express Company	256
139.71.195.0/24	AS6307	American Express Company	American Express Company	256
139.71.186.0/24	AS6307	American Express Company	American Express Company	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:       6307
ASName:         AMERICAN-EXPRESS
ASHandle:       AS6307
RegDate:        1996-02-29
Updated:        1996-02-29
Ref:            https://rdap.arin.net/registry/autnum/6307


OrgName:        American Express Company
OrgId:          AMERIC
Address:        19640 N. 31st Ave.
City:           Phoenix
StateProv:      AZ
PostalCode:     85027
Country:        US
RegDate:        1989-11-06
Updated:        2022-04-20
Ref:            https://rdap.arin.net/registry/entity/AMERIC


OrgAbuseHandle: AESOC-ARIN
OrgAbuseName:   American Express Security Operations Center
OrgAbusePhone:  +1-602-766-1095 
OrgAbuseEmail:  soc@aexp.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AESOC-ARIN

OrgTechHandle: LDA92-ARIN
OrgTechName:   Alfaro, Luis  Diego
OrgTechPhone:  +1-602-766-4746 
OrgTechEmail:  luis.d.alfaro@aexp.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LDA92-ARIN

RTechHandle: KE158-ARIN
RTechName:   Easley, Kevin 
RTechPhone:  +1-602-492-2616 
RTechEmail:  keasley@amex-trs.com
RTechRef:    https://rdap.arin.net/registry/entity/KE158-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" : "6307",
    "as_handle" : "AS6307",
    "as_name" : "AMERICAN-EXPRESS",
    "tech_contacts" : [ "LDA92-ARIN", "KE158-ARIN" ],
    "abuse_contacts" : [ "AESOC-ARIN" ],
    "date_created" : "1996-02-29",
    "date_updated" : "1996-02-29",
    "source" : "https://rdap.arin.net/registry/autnum/6307"
  } ],
  "organization" : {
    "handle" : "AMERIC",
    "name" : "American Express Company",
    "address" : [ "19640 N. 31st Ave.", "Phoenix", "AZ", "85027", "US" ],
    "street" : "N. 31st Ave.",
    "city" : "Phoenix",
    "state" : "AZ",
    "zip_code" : "85027",
    "country" : [ "US" ],
    "date_created" : "1989-11-06",
    "date_updated" : "2022-04-20",
    "source" : "https://rdap.arin.net/registry/entity/AMERIC",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "LDA92-ARIN",
    "name" : "Alfaro, Luis  Diego",
    "email" : [ "luis.d.alfaro@aexp.com" ],
    "phone" : [ "+1-602-766-4746" ],
    "source" : "https://rdap.arin.net/registry/entity/LDA92-ARIN"
  }, {
    "handle" : "KE158-ARIN",
    "name" : "Easley, Kevin",
    "email" : [ "keasley@amex-trs.com" ],
    "phone" : [ "+1-602-492-2616" ],
    "source" : "https://rdap.arin.net/registry/entity/KE158-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AESOC-ARIN",
    "name" : "American Express Security Operations Center",
    "email" : [ "soc@aexp.com" ],
    "phone" : [ "+1-602-766-1095" ],
    "source" : "https://rdap.arin.net/registry/entity/AESOC-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS3356	Level 3 Parent, LLC	US

ASN Lookup Tool

ASN Summary