AS6406
Thomas Jefferson National Accelerator Facility
ARIN US active Announced
More ASNs in the United States → Organization
Thomas Jefferson National Accelerator Facility
CEBAF
Registered
Apr 02, 1996
30 years ago
IPv4 Prefixes
2
65,792 addresses
IPv6 Prefixes
1
1 × /48
BGP Neighbours
1
1 upstream/peer · 0 downstream
Registration
AS Number AS6406 AS Name CEBAF Organization Thomas Jefferson National Accelerator Facility Organization ID CEBAFS-Z Address 12000 Jefferson Avenue, Newport News, VA, 23606, United States Country United States (US) Registry ARIN Allocated Apr 02, 1996 Record Created Apr 02, 1996 Last Updated Dec 12, 2024 Status
active
WHOIS Server whois.arin.net AS Description CEBAF - Thomas Jefferson National Accelerator Facility, US Abuse Email [email protected] Abuse Phone +1-757-269-7100 IPv4 Prefixes
2 prefixes · 65,792 addresses Routing data as of 2026-10-08 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 129.57.0.0/16 | 129.57.0.0 – 129.57.255.255 | 65,536 |
| 192.70.245.0/24 | 192.70.245.0 – 192.70.245.255 | 256 |
IPv6 Prefixes
1 prefix · 1 × /48 Routing data as of 2026-10-08 16:00 UTC
| Prefix | Addresses |
|---|---|
| 2620:0:22f0:: | 280 |
BGP Neighbours
1 unique neighbour · 1 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (1)
AS Name AS paths IPv4 sightings IPv6 sightings AS293 ESNET - ESnet 337 768 363
Raw RDAP Response
{
"endAutnum": 6406,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-04T17:08:21-04:00"
},
{
"eventAction": "registration",
"eventDate": "2026-06-04T13:51:38-04:00"
}
],
"handle": "JLABA-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/JLABA-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6406"
},
{
"href": "https://whois.arin.net/rest/poc/JLABA-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6406"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "12000 Jefferson Avenue\nNewport News\nVA\n23606\nUnited States"
},
"text",
[
"",
"",
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""
]
],
[
"fn",
{},
"text",
"JLAB ADMIN"
],
[
"org",
{},
"text",
"Jefferson Lab"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-757-269-7100"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-13T11:04:11-04:00"
},
{
"eventAction": "registration",
"eventDate": "2012-04-09T17:18:46-04:00"
}
],
"handle": "NOCJL-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOCJL-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6406"
},
{
"href": "https://whois.arin.net/rest/poc/NOCJL-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6406"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "12000 Jefferson Avenue\nNewport News\nVA\n23606\nUnited States"
},
"text",
[
"",
"",
"",
"",
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""
]
],
[
"fn",
{},
"text",
"noc-jlab-org"
],
[
"org",
{},
"text",
"Thomas Jefferson National Accelerator Facility"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-757-269-7100"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-13T10:59:59-04:00"
},
{
"eventAction": "registration",
"eventDate": "2012-04-09T16:58:09-04:00"
}
],
"handle": "ABUSE3390-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE3390-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6406"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE3390-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6406"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "12000 Jefferson Avenue\nNewport News\nVA\n23606\nUnited States"
},
"text",
[
"",
"",
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""
]
],
[
"fn",
{},
"text",
"abuse-jlab-org"
],
[
"org",
{},
"text",
"Thomas Jefferson National Accelerator Facility"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-757-269-7100"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-04T16:28:21-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-12-10T14:01:52-05:00"
}
],
"handle": "CEBAFS-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CEBAFS-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6406"
},
{
"href": "https://whois.arin.net/rest/org/CEBAFS-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6406"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Thomas Jefferson National Accelerator Facility"
],
[
"adr",
{
"label": "12000 Jefferson Avenue\nNewport News\nVA\n23606\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-12-12T17:18:35-05:00"
},
{
"eventAction": "registration",
"eventDate": "1996-04-02T00:00:00-05:00"
}
],
"handle": "AS6406",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/6406",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6406"
},
{
"href": "https://whois.arin.net/rest/asn/AS6406",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6406"
}
],
"name": "CEBAF",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/6406"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/6406"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 6406,
"status": [
"active"
]
} Contact details of private individuals are redacted.