ASN AS1999 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS1999?

AS1999 is listed under U.S. House of Representatives.

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.

AS1999 U.S. House of Representatives

ASN Lookup Tool

U.S. House of Representatives mail.house.gov

US 9 Routes

AS Data

AS1999

AS1999 – U.S. House of Representatives

AS Number	1999
AS Name	HOUSE-AS-1
Organization	U.S. House of Representatives(isuhr)
Country	US
Website	mail.house.gov
Number of IPv4 Routes	8
Number of IPv6 Routes	1
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	1992-09-21

ASN Intelligence API for production workflows

Use ASN data for AS1999 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

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
143.228.0.0/16	AS1999	U.S. House of Representatives	U.S. House of Representatives	65536
2620:0:e20::/46	AS1999	U.S. House of Representatives	U.S. House of Representatives	~5×10²⁴
143.231.0.0/16	AS1999	U.S. House of Representatives	U.S. House of Representatives	65536
74.119.131.0/24	AS1999	U.S. House of Representatives	U.S. House of Representatives	256
74.119.130.0/24	AS1999	U.S. House of Representatives	U.S. House of Representatives	256
143.228.193.0/24	AS1999	U.S. House of Representatives	U.S. House of Representatives	256
137.18.0.0/16	AS1999	U.S. House of Representatives	U.S. House of Representatives	65536
143.228.32.0/19	AS1999	U.S. House of Representatives	U.S. House of Representatives	8192
74.119.128.0/24	AS1999	U.S. House of Representatives	U.S. House of Representatives	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:       1999
ASName:         HOUSE-AS-1
ASHandle:       AS1999
RegDate:        1992-09-21
Updated:        2010-05-25    
Ref:            https://rdap.arin.net/registry/autnum/1999


OrgName:        U.S. House of Representatives
OrgId:          ISUHR
Address:        2nd and D St SW
City:           Washington
StateProv:      DC
PostalCode:     20515
Country:        US
RegDate:        1990-10-17
Updated:        2025-07-18
Ref:            https://rdap.arin.net/registry/entity/ISUHR


OrgTechHandle: HSD22-ARIN
OrgTechName:   Harris Sr., Donald 
OrgTechPhone:  +1-202-226-3854 
OrgTechEmail:  Donald.Harris@mail.house.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/HSD22-ARIN

OrgAbuseHandle: HSD22-ARIN
OrgAbuseName:   Harris Sr., Donald 
OrgAbusePhone:  +1-202-226-3854 
OrgAbuseEmail:  Donald.Harris@mail.house.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HSD22-ARIN

OrgNOCHandle: NCC32-ARIN
OrgNOCName:   Network Control Center
OrgNOCPhone:  +1-202-226-6430 
OrgNOCEmail:  ncc3@mail.house.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/NCC32-ARIN

OrgTechHandle: VENTR14-ARIN
OrgTechName:   Ventre, James 
OrgTechPhone:  +1-571-921-3113 
OrgTechEmail:  jventre@mail.house.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/VENTR14-ARIN

OrgAbuseHandle: VENTR14-ARIN
OrgAbuseName:   Ventre, James 
OrgAbusePhone:  +1-571-921-3113 
OrgAbuseEmail:  jventre@mail.house.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/VENTR14-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

Peers

AS Number	Description	Country
AS12025	Iron Mountain Data Center	US
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS12025	Iron Mountain Data Center	US
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US