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.

AS31816 National Marrow Donor Program

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

National Marrow Donor Program nmdp.org

US 3 Routes

AS Data

AS31816

AS31816 – National Marrow Donor Program

AS Number	31816
AS Name	NMDP
Organization	National Marrow Donor Program(nmdp)
Country	US
Website	nmdp.org
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	NONPROFIT
Registry	ARIN
Date Allocated	2003-12-30

ASN Intelligence API for production workflows

Use ASN data for AS31816 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
192.112.34.0/24	AS31816	National Marrow Donor Program	National Marrow Donor Program	256
198.175.249.0/24	AS31816	National Marrow Donor Program	National Marrow Donor Program	256
192.149.74.0/24	AS31816	National Marrow Donor Program	National Marrow Donor Program	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:       31816
ASName:         NMDP
ASHandle:       AS31816
RegDate:        2003-12-30
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/31816


OrgName:        National Marrow Donor Program
OrgId:          NMDP
Address:        500 N 5th Street
City:           Minneapolis
StateProv:      MN
PostalCode:     55401
Country:        US
RegDate:        1992-03-02
Updated:        2017-12-18
Ref:            https://rdap.arin.net/registry/entity/NMDP


OrgTechHandle: NETWO2361-ARIN
OrgTechName:   Network Services
OrgTechPhone:  +1-612-627-5800 
OrgTechEmail:  netsvc@nmdp.org
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO2361-ARIN

OrgAbuseHandle: NETWO2361-ARIN
OrgAbuseName:   Network Services
OrgAbusePhone:  +1-612-627-5800 
OrgAbuseEmail:  netsvc@nmdp.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO2361-ARIN

RTechHandle: NETWO2361-ARIN
RTechName:   Network Services
RTechPhone:  +1-612-627-5800 
RTechEmail:  netsvc@nmdp.org
RTechRef:    https://rdap.arin.net/registry/entity/NETWO2361-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
AS13367	Comcast Cable Communications, LLC	US
AS19551	Incapsula Inc	US

Upstreams

AS Number	Description	Country
AS13367	Comcast Cable Communications, LLC	US
AS19551	Incapsula Inc	US

Frequently Asked Questions

What is ASN AS31816?

ASN AS31816 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS31816?

AS31816 is listed under National Marrow Donor Program.

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.