ASN AS21817 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21817?

AS21817 is listed under Wave Broadband.

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.

AS21817 Wave Broadband | IPGeolocation.io

ASN Lookup Tool

Wave Broadband wavebroadband.com

US 12 Routes

AS Data

AS21817

AS21817 – Wave Broadband

AS Number	21817
AS Name	NORCAST-AS
Organization	Wave Broadband(waveb)
Country	US
Website	wavebroadband.com
Number of IPv4 Routes	10
Number of IPv6 Routes	2
ASN type	ISP
Registry	ARIN
Date Allocated	2010-05-06

ASN Intelligence API for production workflows

Use ASN data for AS21817 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
207.114.190.0/24	AS21817	Wave Broadband	Norcast Communications	256
207.114.183.0/24	AS21817	Wave Broadband	Norcast Communications	256
199.48.56.0/22	AS21817	Wave Broadband	Wave Broadband	1024
199.36.176.0/21	AS21817	Wave Broadband	Wave Broadband	2048
199.7.192.0/21	AS21817	Wave Broadband	Wave Broadband	2048
104.152.100.0/22	AS21817	Wave Broadband	Wave Broadband	1024
199.200.112.0/22	AS21817	Wave Broadband	Wave Broadband	1024
2607:6200::/32	AS21817	Wave Broadband	Wave Broadband	~79×10²⁷
198.161.144.0/22	AS21817	Wave Broadband	Wave Broadband	1024
198.180.225.0/24	AS21817	Wave Broadband	Wave Broadband	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:       21817
ASName:         NORCAST-AS
ASHandle:       AS21817
RegDate:        2010-05-06
Updated:        2023-01-04    
Ref:            https://rdap.arin.net/registry/autnum/21817


OrgName:        Wave Broadband
OrgId:          WAVEB
Address:        650 College Road East
City:           Princeton
StateProv:      NJ
PostalCode:     08540
Country:        US
RegDate:        2003-05-19
Updated:        2025-10-31
Ref:            https://rdap.arin.net/registry/entity/WAVEB


OrgAbuseHandle: ABN3-ARIN
OrgAbuseName:   Astound Broadband NOC
OrgAbusePhone:  +1-888-972-6622 
OrgAbuseEmail:  noc@astound.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABN3-ARIN

OrgNOCHandle: ABN3-ARIN
OrgNOCName:   Astound Broadband NOC
OrgNOCPhone:  +1-888-972-6622 
OrgNOCEmail:  noc@astound.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ABN3-ARIN

OrgTechHandle: IAT18-ARIN
OrgTechName:   IP admin team
OrgTechPhone:  +1-888-972-6622 
OrgTechEmail:  arin@wavebroadband.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IAT18-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
AS14589	Wave Broadband	US

Upstreams

AS Number	Description	Country
AS14589	Wave Broadband	US