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AS4133 Bitwise Internet Technologies, Inc.

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

Bitwise Internet Technologies, Inc. bitwise.net

US 4 Routes

AS Data

AS4133

AS4133 – Bitwise Internet Technologies, Inc.

AS Number	4133
AS Name	BITWISE
Organization	Bitwise Internet Technologies, Inc.(bit-13)
Country	US
Website	bitwise.net
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1994-12-01

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Use ASN data for AS4133 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.249.32.0/20	AS4133	Bitwise Internet Technologies, Inc.	Bitwise Internet Technologies	4096
207.41.208.0/20	AS4133	Bitwise Internet Technologies, Inc.	Cogent Communications, LLC	4096
204.97.222.0/23	AS4133	Bitwise Internet Technologies, Inc.	Bitwise Software Inc.	512
208.29.160.0/23	AS4133	Bitwise Internet Technologies, Inc.	Cogent Communications, LLC	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:       4133
ASName:         BITWISE
ASHandle:       AS4133
RegDate:        1994-12-01
Updated:        1998-11-08    
Ref:            https://rdap.arin.net/registry/autnum/4133


OrgName:        Bitwise Internet Technologies, Inc.
OrgId:          BIT-13
Address:        22 Drydock Avenue
City:           Boston
StateProv:      MA
PostalCode:     02210
Country:        US
RegDate:        1994-12-01
Updated:        2012-10-10
Ref:            https://rdap.arin.net/registry/entity/BIT-13


OrgTechHandle: JL237-ARIN
OrgTechName:   Leifman, Jacob 
OrgTechPhone:  +1-617-261-7788 
OrgTechEmail:  admin@bitwise.net
OrgTechRef:    https://rdap.arin.net/registry/entity/JL237-ARIN

OrgAbuseHandle: JL237-ARIN
OrgAbuseName:   Leifman, Jacob 
OrgAbusePhone:  +1-617-261-7788 
OrgAbuseEmail:  admin@bitwise.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/JL237-ARIN

RTechHandle: JL237-ARIN
RTechName:   Leifman, Jacob 
RTechPhone:  +1-617-261-7788 
RTechEmail:  admin@bitwise.net
RTechRef:    https://rdap.arin.net/registry/entity/JL237-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
AS6079	RCN	US

Upstreams

AS Number	Description	Country
AS6079	RCN	US

Frequently Asked Questions

What is ASN AS4133?

ASN AS4133 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS4133?

AS4133 is listed under Bitwise Internet Technologies, Inc..

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.