Autonomous System details

AS31755

Viskase Companies, Inc.  ·  viskase.com

United States

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AS31755 – Viskase Companies, Inc.

Field Value
Country United States
Website viskase.com
Hosted domains 0
IPv4 addresses 512
IPv6 addresses 0
ASN type Business
Registry arin
Allocated 19 years ago on Jan 25, 2007
Updated 3 months ago on Dec 09, 2025

IP Ranges

Netblock Company Num of IPs
137.239.221.0/24 Viskase Companies, Inc. 256
208.4.14.0/24 Viskase Companies, Inc. 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS31755
                                                OrgID:          AS31755
                                                ASName:         AS31755
                                                ASNumber:       AS31755
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There are 2 peers for this ASN.

Peers Name
AS33491 Comcast Cable Communications, LLC
AS7018 AT&T Enterprises, LLC
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS33491 Comcast Cable Communications, LLC
AS7018 AT&T Enterprises, LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

2 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
137.239.221.1 AS31755 Viskase Companies, Inc. 2.96ms from Chicago, US
208.4.14.2 AS31755 Viskase Companies, Inc. 1.85ms from Chicago, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
101.185.112.107 AS1221 Telstra Limited 15.01ms from Adelaide, AU
46.198.248.203 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 1.01ms from Athens, GR
52.105.59.139 AS8075 Microsoft Corporation 0.94ms from Berlin, DE
52.143.253.107 AS8075 Microsoft Corporation 0.33ms from Des Moines, US
20.166.189.75 AS8075 Microsoft Corporation 0.45ms from Dublin, IE
218.252.14.11 AS9908 HK Cable TV Ltd 2.89ms from Hong Kong, HK
79.168.84.139 AS2860 NOS COMUNICACOES, S.A. 6.96ms from Lisbon, PT
89.92.235.59 AS5410 Bouygues Telecom SA 2.56ms from Lyon, FR
181.131.197.11 AS13489 UNE EPM TELECOMUNICACIONES S.A. 13.85ms from Medellin, CO
99.32.157.27 AS7018 AT&T Enterprises, LLC 9.72ms from Miami, US
68.110.86.91 AS22773 Cox Communications Inc. 4.96ms from Phoenix, US
185.226.61.43 AS49601 UNITEL-MEDIA Sp. z o.o. 2.14ms from Warsaw, PL
113.140.44.43 AS4134 CHINANET-BACKBONE 5.10ms from Xi'an, CN
75.205.178.107 AS6167 Verizon Business 13.49ms from Atlanta, US
99.171.80.235 AS7018 AT&T Enterprises, LLC 3.08ms from Dallas, US
99.87.217.187 AS7018 AT&T Enterprises, LLC 1.69ms from Dallas, US
217.85.20.203 AS3320 Deutsche Telekom AG 3.62ms from Hamburg, DE
174.140.4.107 AS25019 Saudi Telecom Company JSC 1.22ms from Jeddah, SA
188.50.71.171 AS25019 Saudi Telecom Company JSC 2.66ms from Jeddah, SA
81.146.35.43 AS2856 British Telecommunications PLC 3.05ms from London, GB
51.198.225.11 AS5607 Sky UK Limited 4.08ms from London, GB
23.57.0.235 AS16625 Akamai Technologies, Inc. 0.34ms from New York City, US
134.74.98.59 AS31822 City University of New York 2.05ms from New York City, US
192.250.87.11 AS3738 State Street Bank and Trust Company 2.33ms from New York City, US
20.19.8.203 AS8075 Microsoft Corporation 0.20ms from Paris, FR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f2 137.239.221.2
traceroute to 137.239.221.2 (137.239.221.2): 64 hops max, 52 byte packets
2 [] 156.146.32.232 161.206 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Chicago, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS31755 at robtex.

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