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 633,825,300,114,114,700,000,000,000,000
ASN type ISP
Registry ripe
Allocated 56 years ago on Jan 01, 1970
Updated 4 months 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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ASN API & Database

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

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

IP Address ASN Details
212.129.64.189 AS15751 Eircom Limited 0.76ms from Dublin, IE
2a01:b340:60:8942:baec:466:e71d:b383 AS15751 Eircom Limited 16.21ms from Dublin, IE
2a01:b340:65:6325:9725:39a3:cc03:f31e AS15751 Eircom Limited 35.73ms from Dublin, IE
2a01:b340:f:9::1 AS15751 Eircom Limited 0.79ms from Dublin, IE
2a01:b340:61:8bd:60cb:1630:4410:dd47 AS15751 Eircom Limited 23.55ms from Dublin, IE
2a01:b340:63:6989:dc7b:fff:fe4a:f719 AS15751 Eircom Limited 16.80ms from Dublin, IE
212.129.67.124 AS15751 Eircom Limited 0.78ms from Dublin, IE
2a01:b340:83:2a95:770b:a7ab:d965:ba86 AS15751 Eircom Limited 13.15ms 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
20.61.14.151 AS8075 Microsoft Corporation 1.20ms from Amsterdam, NL
9.163.189.55 AS8075 Microsoft Corporation 0.29ms from Amsterdam, NL
90.225.80.231 AS3301 Telia Company AB 3.26ms from Copenhagen, DK
181.1.211.103 AS7303 Telecom Argentina S.A. 1.44ms from Cordoba, AR
3.251.17.215 AS16509 Amazon.com, Inc. 0.20ms from Dublin, IE
141.101.35.199 AS47215 dogado GmbH 0.67ms from Frankfurt am Main, DE
72.132.177.135 AS20001 Charter Communications Inc 8.41ms from Los Angeles, US
187.223.124.87 AS8151 UNINET 19.69ms from Los Angeles, US
178.163.191.39 AS42772 Unitary enterprise A1 0.78ms from Minsk, BY
84.138.100.39 AS3320 Deutsche Telekom AG 6.34ms from Munich, DE
128.2.4.7 AS9 Carnegie Mellon University 0.72ms from Pittsburgh, US
181.218.128.39 AS28573 Claro NXT Telecomunicacoes Ltda 14.73ms from Rio de Janeiro, BR
126.54.185.231 AS17676 SoftBank Corp. 7.69ms from Tokyo, JP
23.128.121.199 AS16552 Tiggee LLC 0.28ms from Atlanta, US
213.233.73.167 AS12302 Vodafone Romania S.A. 15.85ms from Bucharest, RO
181.102.136.167 AS7303 Telecom Argentina S.A. 8.65ms from Buenos Aires, AR
98.212.136.135 AS7922 Comcast Cable Communications, LLC 5.75ms from Chicago, US
106.203.222.215 AS24560 Bharti Airtel Ltd., Telemedia Services 8.99ms from Delhi, IN
85.22.119.135 AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH 2.66ms from Duesseldorf, DE
4.225.5.7 AS8075 Microsoft Corporation 0.15ms from Gaevle, SE
183.147.83.183 AS4134 CHINANET BACKBONE 8.59ms from Hangzhou, CN
121.148.247.55 AS4766 Korea Telecom 6.70ms from Incheon, KR
84.139.195.183 AS3320 Deutsche Telekom AG 2.83ms from Munich, DE
108.14.73.231 AS701 Verizon Business 2.54ms from New York City, US
61.224.99.167 AS3462 Data Communication Business Group 1.25ms from Taichung, TW

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 109.125.20.80
traceroute to 109.125.20.80 (109.125.20.80): 6 hops max, 52 byte packets
2 [AS58061] 38.180.36.1 0.247 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Almaty, KZ
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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