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.

AS30203 EMD Serono, Inc. | IPGeolocation.io

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

Search ASN

AS Data

IP Routes

Raw Whois

Parsed Whois

Peers

Upstreams

Downstreams

Legacy Routes

EMD Serono, Inc. emdserono.com

US 0 Routes

AS Data

AS30203

AS30203 – EMD Serono, Inc.

AS Number	30203
AS Name	EMDSERONO-NA-BOS1
Organization	EMD Serono, Inc.(emdse-1)
Country	US
Website	emdserono.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2010-02-25

ASN Intelligence API for production workflows

Use ASN data for AS30203 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

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:       30203
ASName:         EMDSERONO-NA-BOS1
ASHandle:       AS30203
RegDate:        2010-02-25
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/30203


OrgName:        EMD Serono, Inc.
OrgId:          EMDSE-1
Address:        1 Technology Place
City:           Rockland
StateProv:      MA
PostalCode:     02370
Country:        US
RegDate:        2010-02-23
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/EMDSE-1


OrgAbuseHandle: RAVIE-ARIN
OrgAbuseName:   Raviele, Joseph 
OrgAbusePhone:  +1-781-982-9000 
OrgAbuseEmail:  joseph.raviele@emdserono.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RAVIE-ARIN

OrgTechHandle: RAVIE-ARIN
OrgTechName:   Raviele, Joseph 
OrgTechPhone:  +1-781-982-9000 
OrgTechEmail:  joseph.raviele@emdserono.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RAVIE-ARIN

RTechHandle: RAVIE-ARIN
RTechName:   Raviele, Joseph 
RTechPhone:  +1-781-982-9000 
RTechEmail:  joseph.raviele@emdserono.com
RTechRef:    https://rdap.arin.net/registry/entity/RAVIE-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

Frequently Asked Questions

What is ASN AS30203?

ASN AS30203 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS30203?

AS30203 is listed under EMD Serono, 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.