Autonomous System details

AS15751

Eircom Limited  ·  eir.ie

Ireland

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AS15751 – Eircom Limited

Field Value
Country Ireland
Website eir.ie
Hosted domains 2
IPv4 addresses 24,832
IPv6 addresses 633,825,300,114,114,700,748,351,602,688
ASN type ISP
Registry ripe
Allocated 56 years ago on Jan 01, 1970
Updated 22 days ago on Jan 09, 2026

IP Ranges

Netblock Company Num of IPs
109.125.0.0/18 Eircom Limited 16,384
212.129.80.0/20 eir Mobile Broadband 4,096
212.129.72.0/21 eir Mobile Broadband 2,048
212.129.68.0/22 eir Mobile Broadband 1,024
185.51.72.0/23 eir Mobile Communications IP Network 512
212.129.66.0/23 eir Mobile Communications IP Network 512
212.129.64.0/24 eir Mobile Communications IP Network 256
Netblock Company
2a01:b340::/29 Eircom Limited
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WHOIS Details

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                                                ASHandle:       AS15751
                                                OrgID:          AS15751
                                                ASName:         AS15751
                                                ASNumber:       AS15751
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 2 domain names hosted across 1 IP address on this ASN.

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IP Address Domain Domains on this IP
212.129.78.227 █████████ 2

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Peers

There is 1 peer for this ASN.

Peers Name
AS5466 Eircom Limited
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS5466 Eircom Limited
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
2a01:b340:60:7b9a:90a5:d4ff:fea1:7bd8 AS15751 Eircom Limited 70.30ms from Dublin, IE
2a01:b340:84:13c1:831a:500:fa98:9283 AS15751 Eircom Limited 15.80ms from Dublin, IE
2a01:b340:f:9::1 AS15751 Eircom Limited 0.79ms from Dublin, IE
2a01:b340:81:2b6:de80:11c7:dcb4:ca8a AS15751 Eircom Limited 261.31ms from Dublin, IE
2a01:b340:64:7f83:478f:addf:5b89:6155 AS15751 Eircom Limited 33.84ms from Dublin, IE
212.129.64.72 AS15751 Eircom Limited 0.86ms from Dublin, IE
2a01:b340:62:55a3:be30:d247:1789:904c AS15751 Eircom Limited 16.73ms from Dublin, IE
2a01:b340:82:8bf8:4f47:5d51:a79c:46ca AS15751 Eircom Limited 22.71ms from Dublin, IE
212.129.67.124 AS15751 Eircom Limited 0.71ms from Dublin, IE
2a01:b340:80:cd82:9e98:8286:460a:8c5 AS15751 Eircom Limited 18.66ms from Dublin, IE
2a01:b340:65:e28e:9bd8:a7cd:5fcc:8b4d AS15751 Eircom Limited 17.42ms from Dublin, IE

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
197.203.1.135 AS36947 Telecom Algeria 12.44ms from Algiers, DZ
73.208.107.103 AS7922 Comcast Cable Communications, LLC 3.44ms from Chicago, US
109.157.156.119 AS2856 British Telecommunications PLC 5.49ms from London, GB
179.210.84.23 AS28573 Claro NXT Telecomunicacoes Ltda 7.88ms from Rio de Janeiro, BR
216.64.128.23 AS3549 Level 3 Parent, LLC 9.21ms from Salt Lake City, US
128.55.225.23 AS2936 National Energy Research Scientific Computing Center 2.06ms from San Jose, US
32.218.109.87 AS46690 Southern New England Telephone Company and SNET America, Inc. 4.20ms from Secaucus, US
58.39.83.71 AS4812 China Telecom (Group) 2.76ms from Shanghai, CN
110.175.168.183 AS7545 TPG Telecom Limited 11.15ms from Adelaide, AU
123.117.236.55 AS4808 China Unicom Beijing Province Network 3.33ms from Beijing, CN
96.51.158.231 AS6327 Shaw Communications 4.35ms from Calgary, CA
66.56.193.71 AS11426 Charter Communications Inc 13.84ms from Charlotte, US
65.63.187.71 AS8011 MongoDB, Inc. 0.14ms from Dublin, IE
217.154.184.231 AS8560 IONOS SE 0.27ms from Logrono, ES
69.204.72.71 AS11351 Charter Communications Inc 14.23ms from New York City, US
119.167.48.247 AS4837 CHINA UNICOM China169 Backbone 0.84ms from Qingdao, CN
191.58.25.7 AS4230 CLARO S.A. 16.80ms from Sao Paulo, BR
221.161.77.7 AS4766 Korea Telecom 6.54ms from Seoul, KR
31.154.232.119 AS12400 Partner Communications Ltd. 1.72ms from Tel Aviv, IL
126.54.185.231 AS17676 SoftBank Corp. 7.41ms from Tokyo, JP
219.138.122.247 AS4134 CHINANET-BACKBONE 5.08ms from Wuhan, CN
156.59.208.183 AS21859 Zenlayer Inc 0.02ms from Bangkok, TH
101.20.219.151 AS4837 CHINA UNICOM China169 Backbone 4.73ms from Beijing, CN
160.238.170.103 AS265725 COOP. DE ELECT., OBRAS, CRÉDITO, VIVIENDA Y SERVICIOS PÚBLICOS DE LAS FLORES LTDA 4.21ms from Buenos Aires, AR
173.46.245.7 AS22379 Manifold Services Inc 4.78ms from Chicago, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m10 109.125.56.101
traceroute to 109.125.56.101 (109.125.56.101): 10 hops max, 52 byte packets
4 [AS34718] 80.80.209.217 62.515 ms
5 *
6 [AS28910] 195.69.189.33 15.128 ms
7 [AS20764] 80.64.103.6 55.462 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Tashkent, UZ
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 AS15751 at robtex.

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