What is ASN AS399856?

ASN AS399856 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399856?

AS399856 is listed under Pratt Institute.

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.

AS399856 Pratt Institute | IPGeolocation.io

ASN Lookup Tool

Pratt Institute pratt.edu

US 3 Routes

AS Data

AS399856

AS399856 – Pratt Institute

AS Number	399856
AS Name	PRATTINSTITUTE-1
Organization	Pratt Institute(pi-985)
Country	US
Website	pratt.edu
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2021-07-07

ASN Intelligence API for production workflows

Use ASN data for AS399856 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
45.45.228.0/24	AS399856	Pratt Institute	Pratt Institute	256
45.45.228.0/22	AS399856	Pratt Institute	Pratt Institute	1024
65.51.58.0/23	AS399856	Pratt Institute	Pratt Institute	512

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:       399856
ASName:         PRATTINSTITUTE-1
ASHandle:       AS399856
RegDate:        2021-07-07
Updated:        2021-07-07    
Ref:            https://rdap.arin.net/registry/autnum/399856


OrgName:        Pratt Institute
OrgId:          PI-985
Address:        200 Willoughby Avenue
City:           Brooklyn
StateProv:      NY
PostalCode:     11205
Country:        US
RegDate:        2021-06-04
Updated:        2021-10-12
Ref:            https://rdap.arin.net/registry/entity/PI-985


OrgDNSHandle: NETWO4974-ARIN
OrgDNSName:   Network Administrator
OrgDNSPhone:  +1-718-399-4219 
OrgDNSEmail:  netgroup@pratt.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/NETWO4974-ARIN

OrgAbuseHandle: NETWO4974-ARIN
OrgAbuseName:   Network Administrator
OrgAbusePhone:  +1-718-399-4219 
OrgAbuseEmail:  netgroup@pratt.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO4974-ARIN

OrgRoutingHandle: NETWO4974-ARIN
OrgRoutingName:   Network Administrator
OrgRoutingPhone:  +1-718-399-4219 
OrgRoutingEmail:  netgroup@pratt.edu
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETWO4974-ARIN

OrgTechHandle: NETWO4974-ARIN
OrgTechName:   Network Administrator
OrgTechPhone:  +1-718-399-4219 
OrgTechEmail:  netgroup@pratt.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO4974-ARIN

OrgNOCHandle: NETWO4974-ARIN
OrgNOCName:   Network Administrator
OrgNOCPhone:  +1-718-399-4219 
OrgNOCEmail:  netgroup@pratt.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO4974-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
AS3754	NYSERNet	US
AS3630	NYSERNet	US
AS174	Cogent Communications, LLC	US
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS3754	NYSERNet	US
AS3630	NYSERNet	US
AS174	Cogent Communications, LLC	US
AS54004	Cablevision Lightpath LLC	US