IPv4 R&E Routing Table Report 21:10 GMT Tue 10 Jun, 2025 IPv4 BGP Table (Global) as seen at AARNET (Brisbane). Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AARNET/ Analysis Summary ---------------- BGP routing table entries examined: 985442 Prefixes after maximum aggregation (per Origin AS): 380180 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481800 Number of IPv4 prefixes with a valid ROA: 549433 Number of IPv4 prefixes with an invalid ROA: 150 Number of IPv4 prefixes with no ROA: 435856 Total ASes present in the Internet Routing Table: 76893 Prefixes per ASN: 12.82 Origin-only ASes present in the Internet Routing Table: 65868 Origin ASes announcing only one prefix: 26921 Transit ASes present in the Internet Routing Table: 11025 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 24 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN (139693) 35 Prefixes from unregistered ASNs in the Routing Table: 994 Number of instances of unregistered ASNs: 1028 Number of 32-bit ASNs allocated by the RIRs: 46631 Number of 32-bit ASNs visible in the Routing Table: 38342 Prefixes from 32-bit ASNs in the Routing Table: 203151 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 445 Number of addresses announced to Internet: 3110635776 Equivalent to 185 /8s, 104 /16s and 137 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 322661 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258242 Total APNIC prefixes after maximum aggregation: 77241 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 249606 Unique aggregates announced from the APNIC address blocks: 104018 APNIC Region origin ASes present in the Internet Routing Table: 14600 APNIC Prefixes per ASN: 17.10 APNIC Region origin ASes announcing only one prefix: 4453 APNIC Region transit ASes present in the Internet Routing Table: 1961 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10126 Number of APNIC addresses announced to Internet: 749186560 Equivalent to 44 /8s, 167 /16s and 174 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 291120 Total ARIN prefixes after maximum aggregation: 131282 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 292816 Unique aggregates announced from the ARIN address blocks: 139347 ARIN Region origin ASes present in the Internet Routing Table: 19244 ARIN Prefixes per ASN: 15.22 ARIN Region origin ASes announcing only one prefix: 7039 ARIN Region transit ASes present in the Internet Routing Table: 1991 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5227 Number of ARIN addresses announced to Internet: 1353032448 Equivalent to 80 /8s, 165 /16s and 163 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 275219 Total RIPE prefixes after maximum aggregation: 134772 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273787 Unique aggregates announced from the RIPE address blocks: 175469 RIPE Region origin ASes present in the Internet Routing Table: 28947 RIPE Prefixes per ASN: 9.46 RIPE Region origin ASes announcing only one prefix: 12065 RIPE Region transit ASes present in the Internet Routing Table: 3997 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12494 Number of RIPE addresses announced to Internet: 731340032 Equivalent to 43 /8s, 151 /16s and 93 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 124250 Total LACNIC prefixes after maximum aggregation: 29556 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120566 Unique aggregates announced from the LACNIC address blocks: 49033 LACNIC Region origin ASes present in the Internet Routing Table: 11259 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2666 LACNIC Region transit ASes present in the Internet Routing Table: 2507 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9211 Number of LACNIC addresses announced to Internet: 171834368 Equivalent to 10 /8s, 61 /16s and 252 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 35617 Total AfriNIC prefixes after maximum aggregation: 6712 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 48221 Unique aggregates announced from the AfriNIC address blocks: 13539 AfriNIC Region origin ASes present in the Internet Routing Table: 1919 AfriNIC Prefixes per ASN: 25.13 AfriNIC Region origin ASes announcing only one prefix: 698 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 27 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1284 Number of AfriNIC addresses announced to Internet: 105039360 Equivalent to 6 /8s, 66 /16s and 198 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 11077 8758 100 CHINAMOBILE-CN China Mobile Communication 7545 6180 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4482 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4303 534 304 BBIL-AP BHARTI Airtel Ltd., IN 7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3268 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2175 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13671 40939 5243 AMAZON-02, US 11492 4762 316 595 CABLEONE, US 7155 3863 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 22773 3605 3037 211 ASN-CXA-ALL-CCI-22773-RDC, US 174 3457 8746 888 COGENT-174, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3184 3854 425 GOOGLE-CLOUD-PLATFORM, US 16625 3145 1314 2264 AKAMAI-AS, US 36352 2812 230 855 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7697 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4063 3395 127 AKAMAI-ASN1, NL 9009 3883 357 2086 M247, RO 12389 3106 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2258 164 1647 CDNEXT, GB 8452 1636 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1414 94 738 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12172 3233 586 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2550 540 363 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 11664 1196 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1063 70 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1041 373 162 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1820 644 27 RAYA-AS, EG 24863 1634 389 17 LINKdotNET-AS, EG 29571 1615 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1247 553 104 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 564 82 3 KENET-AS, KE 15399 530 56 53 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13671 40939 5243 AMAZON-02, US 8151 12172 3233 586 UNINET, MX 9808 11077 8758 100 CHINAMOBILE-CN China Mobile Communication 12479 7697 1714 148 UNI2-AS, ES 7545 6180 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 18403 4482 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4303 534 304 BBIL-AP BHARTI Airtel Ltd., IN 20940 4063 3395 127 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12172 11586 UNINET, MX 9808 11077 10977 CHINAMOBILE-CN China Mobile Communications Grou 12479 7697 7549 UNI2-AS, ES 7545 6180 5529 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4482 4457 FPT-AS-AP FPT Telecom Company, VN 11492 4762 4167 CABLEONE, US 9498 4303 3999 BBIL-AP BHARTI Airtel Ltd., IN 20940 4063 3936 AKAMAI-ASN1, NL 7552 3920 3894 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/AARNET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 6939 HURRICANE, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:41 /11:92 /12:299 /13:584 /14:1220 /15:2169 /16:13909 /17:8280 /18:13703 /19:24606 /20:44072 /21:51771 /22:112196 /23:102703 /24:609766 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6616 7697 UNI2-AS, ES 8151 6383 12172 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3631 SHAW, CA 7155 2822 3863 VIASAT-SP-BACKBONE, US 22773 2733 3605 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2374 13671 AMAZON-02, US 30036 2247 2589 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2369 2:1514 3:813 4:9 5:4718 6:162 7:6 8:1574 9:1 11:172 12:1350 13:450 14:2521 15:359 16:285 17:376 18:921 20:545 21:4 22:188 23:7617 24:2803 25:2 27:2787 29:19 31:3281 32:36 33:1 34:80 35:257 36:3076 37:4604 38:9206 39:909 40:172 41:4203 42:1998 43:2605 44:380 45:18540 46:5117 47:318 49:1941 50:1882 51:591 52:1568 54:319 55:1086 56:11 57:268 58:2216 59:1183 60:1172 61:2793 62:2937 63:1801 64:5469 65:2065 66:4656 67:3064 68:1157 69:3946 70:1137 71:634 72:2850 74:2801 75:1518 76:616 77:2715 78:1910 79:1714 80:2224 81:2052 82:3151 83:1448 84:1874 85:3458 86:1076 87:2142 88:1329 89:4412 90:771 91:8397 92:2727 93:2912 94:4022 95:4363 96:1465 97:311 98:1019 99:698 100:73 101:1193 102:3848 103:32199 104:5112 105:760 106:1038 107:2688 108:1243 109:4082 110:2235 111:3273 112:2130 113:1805 114:1989 115:2135 116:2057 117:2565 118:2894 119:1908 120:1997 121:1382 122:2788 123:2195 124:1585 125:2859 126:91 128:1615 129:965 130:1307 131:2009 132:782 133:449 134:1532 135:334 136:1351 137:1312 138:2836 139:1602 140:1602 141:1505 142:1903 143:1830 144:1128 145:528 146:2183 147:2116 148:2710 149:2888 150:1249 151:1962 152:2095 153:578 154:7481 155:1743 156:3017 157:1923 158:1323 159:2493 160:3597 161:1854 162:3840 163:2212 164:1857 165:1978 166:1496 167:1961 168:4007 169:795 170:5109 171:1024 172:4458 173:3317 174:926 175:1303 176:3702 177:4672 178:3708 179:2296 180:2635 181:4082 182:3444 183:2102 184:2121 185:21602 186:5160 187:4508 188:4248 189:4287 190:9576 191:1480 192:11312 193:9487 194:7807 195:5542 196:3277 197:3658 198:6208 199:8504 200:8222 201:6373 202:10275 203:10652 204:4577 205:3659 206:4512 207:3611 208:4258 209:5163 210:4611 211:2534 212:4575 213:3735 214:1031 215:48 216:6780 217:3157 218:1357 219:390 220:2089 221:1134 222:724 223:2453 End of report