AS22644 Thomas Jefferson University Hospitals, Inc.

TJUH - Thomas Jefferson University Hospitals, Inc. · registered in the United States

IPv4 addresses61,4404 prefixes · 0.002% of announced IPv4

Rank in United States#1,387largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,616of 79,396 networks with IPv4

IPv64,877 x /4811 prefixes

CountryUnited States18,679 ASNs registered there

Open AS22644 in ASN lookup Look up an IP in this network (147.140.0.1) All networks in United States

IPv4 prefixes

All 4 prefixes, in address order.

147.140.0.0/18
147.140.80.0/20
147.140.96.0/19
147.140.128.0/17

IPv6 prefixes

All 11 prefixes.

2605:2c0::/47
2605:2c0:1000::/47
2605:2c0:3000::/40
2605:2c0:4000::/36
2605:2c0:5000::/48
2605:2c0:5008::/47
2605:2c0:6000::/47
2605:2c0:6010::/48
2605:2c0:6100::/47
2605:2c0:6110::/48
2605:2c0:6200::/39

Other ASNs named Thomas Jefferson University Hospitals, Inc.

1 other network uses the same organisation name; together with AS22644 they announce 61,696 IPv4 addresses.

ASNNameIPv4 addresses

AS33275KHS-ASN - Thomas Jefferson University Hospitals, Inc. US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS10583#1384 CHIME - Connecticut Hospital Assoc.61,696

AS33616#1385 CO-MO-COMM - Co-Mo Comm Inc61,696

AS30408#1386 ASUNET - Arkansas State University61,692

AS26462#1388 AS-GENESEO - The State University of New York College at Geneseo61,440

AS14921#1389 CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink Communications, LLC61,440

AS15119#1390 SOUTHERN-ILLINOIS-UNIVERSITY - Southern Illinois University Carbondale61,440

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources