ASN AS13621 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS13621?

AS13621 is listed under Reinsurance Group of America, Incorporated.

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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AS13621 Reinsurance Group of America, Incorporated

ASN Lookup Tool

Reinsurance Group of America, Incorporated rgare.com

US 7 Routes

AS Data

AS13621

AS13621 – Reinsurance Group of America, Incorporated

AS Number	13621
AS Name	REINSURANCE
Organization	Reinsurance Group of America, Incorporated (rga-3)
Country	US
Website	rgare.com
Number of IPv4 Routes	7
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1999-07-15

ASN Intelligence API for production workflows

Use ASN data for AS13621 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
104.128.78.0/24	AS13621	Reinsurance Group of America, Incorporated	Reinsurance Group of America, Incorporated	256
104.204.233.0/24	AS13621	Reinsurance Group of America, Incorporated	Reinsurance Group of America, Incorporated	256
12.219.219.0/24	AS13621	Reinsurance Group of America, Incorporated	AT&T Services, Inc.	256
104.204.235.0/24	AS13621	Reinsurance Group of America, Incorporated	Reinsurance Group of America, Incorporated	256
104.204.234.0/24	AS13621	Reinsurance Group of America, Incorporated	Reinsurance Group of America, Incorporated	256
198.190.171.0/24	AS13621	Reinsurance Group of America, Incorporated	Reinsurance Group of America, Incorporated	256
104.128.79.0/24	AS13621	Reinsurance Group of America, Incorporated	Reinsurance Group of America, Incorporated	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:       13621
ASName:         REINSURANCE
ASHandle:       AS13621
RegDate:        1999-07-15
Updated:        2026-09-23
Comment:        -----BEGIN PUBLIC KEY-----
Comment:        MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqQC0OkpcWGGGqF/uBP/v
Comment:        j80Dm5J+2DnTom8YamkiTggDea89/WjQaURnV+NU74CAW80OQv1wyip0OWDHIkRE
Comment:        aTgM2rltvX6i4hrnQ7RHud87UTHPOv0rgwBJ+fFBkhx48baVeW4w1J/+/m4zdgfy
Comment:        Mu7ugVbY0NYG/7nZJkh+a+96KAxr5KOSdidpkH7o+CxIxzDf6j+4HwbaSerugPiP
Comment:        wRjPnW/0K0r9/vytuZ0v3+oh1OclI8EbYsAFnEFdpYrSdIopu+mIcEfYvfAu6NRZ
Comment:        p/JHQUI+AsU6ojeK/loQ2LTv4ICYZzHrGKLsHhM/zR6ZDVGwxiMwFqeRFivopQKM
Comment:        8wIDAQAB
Comment:        -----END PUBLIC KEY-----
Ref:            https://rdap.arin.net/registry/autnum/13621


OrgName:        Reinsurance Group of America, Incorporated
OrgId:          RGA-3
Address:        16600 Swingley Ridge Road
City:           Chesterfield
StateProv:      MO
PostalCode:     63017
Country:        US
RegDate:        1994-02-02
Updated:        2026-09-23
Ref:            https://rdap.arin.net/registry/entity/RGA-3


OrgAbuseHandle: FORTN34-ARIN
OrgAbuseName:   Fortner, Christopher 
OrgAbusePhone:  +1-314-886-1554 
OrgAbuseEmail:  christopher.fortner@rgare.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/FORTN34-ARIN

OrgTechHandle: NOLKE-ARIN
OrgTechName:   Nolke, Justin 
OrgTechPhone:  +1-557-500-3188 
OrgTechEmail:  justin.nolke@rgare.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOLKE-ARIN

OrgTechHandle: WRENN16-ARIN
OrgTechName:   Wrenn, Philip 
OrgTechPhone:  +1-314-349-4381 
OrgTechEmail:  philip.wrenn@rgare.com
OrgTechRef:    https://rdap.arin.net/registry/entity/WRENN16-ARIN

OrgTechHandle: FORTN34-ARIN
OrgTechName:   Fortner, Christopher 
OrgTechPhone:  +1-314-886-1554 
OrgTechEmail:  christopher.fortner@rgare.com
OrgTechRef:    https://rdap.arin.net/registry/entity/FORTN34-ARIN

RTechHandle: FORTN34-ARIN
RTechName:   Fortner, Christopher 
RTechPhone:  +1-314-886-1554 
RTechEmail:  christopher.fortner@rgare.com
RTechRef:    https://rdap.arin.net/registry/entity/FORTN34-ARIN

RTechHandle: NOLKE-ARIN
RTechName:   Nolke, Justin 
RTechPhone:  +1-557-500-3188 
RTechEmail:  justin.nolke@rgare.com
RTechRef:    https://rdap.arin.net/registry/entity/NOLKE-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" : "13621",
    "as_handle" : "AS13621",
    "as_name" : "REINSURANCE",
    "tech_contacts" : [ "NOLKE-ARIN", "WRENN16-ARIN", "FORTN34-ARIN", "FORTN34-ARIN", "NOLKE-ARIN" ],
    "abuse_contacts" : [ "FORTN34-ARIN" ],
    "date_created" : "1999-07-15",
    "date_updated" : "2026-09-23",
    "source" : "https://rdap.arin.net/registry/autnum/13621"
  } ],
  "organization" : {
    "handle" : "RGA-3",
    "name" : "Reinsurance Group of America, Incorporated",
    "address" : [ "16600 Swingley Ridge Road", "Chesterfield", "MO", "63017", "US" ],
    "street" : "Swingley Ridge Road",
    "city" : "Chesterfield",
    "state" : "MO",
    "zip_code" : "63017",
    "country" : [ "US" ],
    "date_created" : "1994-02-02",
    "date_updated" : "2026-09-23",
    "source" : "https://rdap.arin.net/registry/entity/RGA-3",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NOLKE-ARIN",
    "name" : "Nolke, Justin",
    "email" : [ "justin.nolke@rgare.com" ],
    "phone" : [ "+1-557-500-3188" ],
    "source" : "https://rdap.arin.net/registry/entity/NOLKE-ARIN"
  }, {
    "handle" : "WRENN16-ARIN",
    "name" : "Wrenn, Philip",
    "email" : [ "philip.wrenn@rgare.com" ],
    "phone" : [ "+1-314-349-4381" ],
    "source" : "https://rdap.arin.net/registry/entity/WRENN16-ARIN"
  }, {
    "handle" : "FORTN34-ARIN",
    "name" : "Fortner, Christopher",
    "email" : [ "christopher.fortner@rgare.com" ],
    "phone" : [ "+1-314-886-1554" ],
    "source" : "https://rdap.arin.net/registry/entity/FORTN34-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "FORTN34-ARIN",
    "name" : "Fortner, Christopher",
    "email" : [ "christopher.fortner@rgare.com" ],
    "phone" : [ "+1-314-886-1554" ],
    "source" : "https://rdap.arin.net/registry/entity/FORTN34-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS2686	AT&T Enterprises, LLC	US
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS64999
AS7018	AT&T Enterprises, LLC	US
AS2687	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS2686	AT&T Enterprises, LLC	US
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS7018	AT&T Enterprises, LLC	US
AS2687	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US