ASN AS23172 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23172?

AS23172 is listed under Pentagon Federal Credit Union.

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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AS23172 Pentagon Federal Credit Union

ASN Lookup Tool

Pentagon Federal Credit Union penfed.org

US 8 Routes

AS Data

AS23172

AS23172 – Pentagon Federal Credit Union

AS Number	23172
AS Name	PENTAGONFEDERALCU
Organization	Pentagon Federal Credit Union (pfcu-5)
Country	US
Website	penfed.org
Number of IPv4 Routes	8
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2002-02-04

ASN Intelligence API for production workflows

Use ASN data for AS23172 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.250.244.0/24	AS23172	Pentagon Federal Credit Union	Pentagon Federal Credit Union	256
98.182.105.0/24	AS23172	Pentagon Federal Credit Union	Cox Communications Inc.	256
50.234.6.0/24	AS23172	Pentagon Federal Credit Union	Comcast Cable Communications, LLC	256
199.250.245.0/24	AS23172	Pentagon Federal Credit Union	Pentagon Federal Credit Union	256
199.250.244.0/23	AS23172	Pentagon Federal Credit Union	Pentagon Federal Credit Union	512
67.41.55.0/24	AS23172	Pentagon Federal Credit Union	CenturyLink Communications, LLC	256
64.253.166.0/24	AS23172	Pentagon Federal Credit Union	PFCU	256
199.250.246.0/24	AS23172	Pentagon Federal Credit Union	Pentagon Federal Credit Union	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:       23172
ASName:         PENTAGONFEDERALCU
ASHandle:       AS23172
RegDate:        2002-02-04
Updated:        2005-07-22
Ref:            https://rdap.arin.net/registry/autnum/23172


OrgName:        Pentagon Federal Credit Union
OrgId:          PFCU-5
Address:        14300 Sullyfield Circle
City:           Chantilly
StateProv:      VA
PostalCode:     20151
Country:        US
RegDate:        2002-01-08
Updated:        2015-07-29
Ref:            https://rdap.arin.net/registry/entity/PFCU-5


OrgAbuseHandle: PENFE-ARIN
OrgAbuseName:   PENFED-ARIN
OrgAbusePhone:  +1-703-838-1111 
OrgAbuseEmail:  domainadmin@penfed.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/PENFE-ARIN

OrgTechHandle: PENFE-ARIN
OrgTechName:   PENFED-ARIN
OrgTechPhone:  +1-703-838-1111 
OrgTechEmail:  domainadmin@penfed.org
OrgTechRef:    https://rdap.arin.net/registry/entity/PENFE-ARIN

OrgNOCHandle: PENFE-ARIN
OrgNOCName:   PENFED-ARIN
OrgNOCPhone:  +1-703-838-1111 
OrgNOCEmail:  domainadmin@penfed.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/PENFE-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" : "23172",
    "as_handle" : "AS23172",
    "as_name" : "PENTAGONFEDERALCU",
    "tech_contacts" : [ "PENFE-ARIN" ],
    "abuse_contacts" : [ "PENFE-ARIN" ],
    "date_created" : "2002-02-04",
    "date_updated" : "2005-07-22",
    "source" : "https://rdap.arin.net/registry/autnum/23172"
  } ],
  "organization" : {
    "handle" : "PFCU-5",
    "name" : "Pentagon Federal Credit Union",
    "address" : [ "14300 Sullyfield Circle", "Chantilly", "VA", "20151", "US" ],
    "street" : "Sullyfield Circle",
    "city" : "Chantilly",
    "state" : "VA",
    "zip_code" : "20151",
    "country" : [ "US" ],
    "date_created" : "2002-01-08",
    "date_updated" : "2015-07-29",
    "source" : "https://rdap.arin.net/registry/entity/PFCU-5",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "PENFE-ARIN",
    "name" : "PENFED-ARIN",
    "email" : [ "domainadmin@penfed.org" ],
    "phone" : [ "+1-703-838-1111" ],
    "source" : "https://rdap.arin.net/registry/entity/PENFE-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "PENFE-ARIN",
    "name" : "PENFED-ARIN",
    "email" : [ "domainadmin@penfed.org" ],
    "phone" : [ "+1-703-838-1111" ],
    "source" : "https://rdap.arin.net/registry/entity/PENFE-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR
AS33490	Comcast Cable Communications, LLC	US
AS209	CenturyLink Communications, LLC	US
AS3356	Level 3 Parent, LLC	US
AS22773	Cox Communications Inc.	US
AS32787	Akamai Technologies, Inc.	US

Upstreams

AS Number	Description	Country
AS33490	Comcast Cable Communications, LLC	US
AS209	CenturyLink Communications, LLC	US
AS3356	Level 3 Parent, LLC	US
AS22773	Cox Communications Inc.	US
AS32787	Akamai Technologies, Inc.	US

Legacy Routes

199.250.246.0/23