ASN AS21647 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21647?

AS21647 is listed under Lightboard Realty.

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.

AS21647 Lightboard Realty | IPGeolocation.io

ASN Lookup Tool

Lightboard Realty lightboardrealty.com

US 4 Routes

AS Data

AS21647

AS21647 – Lightboard Realty

AS Number	21647
AS Name	LIGHTBOARD-SYRACUSE-IX
Organization	Lightboard Realty(asa-283)
Country	US
Website	lightboardrealty.com
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2023-12-07

ASN Intelligence API for production workflows

Use ASN data for AS21647 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
23.167.200.0/24	AS21647	Lightboard Realty	Lightboard Realty	256
23.167.201.0/24	AS21647	Lightboard Realty	Lightboard Realty	256
149.112.190.0/24	AS21647	Lightboard Realty	Lightboard Realty	256
149.112.191.0/24	AS21647	Lightboard Realty	Lightboard Realty	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:       21647
ASName:         LIGHTBOARD-SYRACUSE-IX
ASHandle:       AS21647
RegDate:        2023-12-07
Updated:        2026-02-09    
Ref:            https://rdap.arin.net/registry/autnum/21647


OrgName:        Lightboard Realty
OrgId:          ASA-283
Address:        10 Post Office Square
Address:        Suite 819
City:           Boston
StateProv:      MA
PostalCode:     02109
Country:        US
RegDate:        2023-11-21
Updated:        2026-02-02
Comment:        Lightboard builds and operates telecommunications critical infrastructure.
Ref:            https://rdap.arin.net/registry/entity/ASA-283


OrgDNSHandle: NOC34101-ARIN
OrgDNSName:   Network Operations Center
OrgDNSPhone:  +1-877-254-4482 
OrgDNSEmail:  help@lightboardrealty.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/NOC34101-ARIN

OrgNOCHandle: NOC34101-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-877-254-4482 
OrgNOCEmail:  help@lightboardrealty.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC34101-ARIN

OrgRoutingHandle: NOC34101-ARIN
OrgRoutingName:   Network Operations Center
OrgRoutingPhone:  +1-877-254-4482 
OrgRoutingEmail:  help@lightboardrealty.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NOC34101-ARIN

OrgTechHandle: FIELD6-ARIN
OrgTechName:   Fields, Bryan 
OrgTechPhone:  +1-727-409-1194 
OrgTechEmail:  bf@bryanfields.net
OrgTechRef:    https://rdap.arin.net/registry/entity/FIELD6-ARIN

OrgAbuseHandle: NOC34101-ARIN
OrgAbuseName:   Network Operations Center
OrgAbusePhone:  +1-877-254-4482 
OrgAbuseEmail:  help@lightboardrealty.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC34101-ARIN

OrgTechHandle: NOC34101-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-877-254-4482 
OrgTechEmail:  help@lightboardrealty.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC34101-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
AS1239	Cogent Communications, LLC	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS174	Cogent Communications, LLC	US