IPv4 R&E Routing Table Report 21:10 GMT Fri 17 Oct, 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: 1010694 Prefixes after maximum aggregation (per Origin AS): 391866 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 498015 Number of IPv4 prefixes with a valid ROA: 581106 Number of IPv4 prefixes with an invalid ROA: 133 Number of IPv4 prefixes with no ROA: 429455 Total ASes present in the Internet Routing Table: 77455 Prefixes per ASN: 13.05 Origin-only ASes present in the Internet Routing Table: 66321 Origin ASes announcing only one prefix: 27125 Transit ASes present in the Internet Routing Table: 11134 Transit-only ASes present in the Internet Routing Table: 565 Paths with bogon ASNs present in the IPv4 Routing Table: 45 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 91 Max AS path prepend of ASN (265605) 87 Prefixes from unregistered ASNs in the Routing Table: 971 Number of instances of unregistered ASNs: 1037 Number of 32-bit ASNs allocated by the RIRs: 47739 Number of 32-bit ASNs visible in the Routing Table: 39165 Prefixes from 32-bit ASNs in the Routing Table: 213406 Number of bogon 32-bit ASNs visible in the Routing Table: 148 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 443 Number of addresses announced to Internet: 3112212480 Equivalent to 185 /8s, 128 /16s and 152 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 329921 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269832 Total APNIC prefixes after maximum aggregation: 80139 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259426 Unique aggregates announced from the APNIC address blocks: 105928 APNIC Region origin ASes present in the Internet Routing Table: 14842 APNIC Prefixes per ASN: 17.48 APNIC Region origin ASes announcing only one prefix: 4533 APNIC Region transit ASes present in the Internet Routing Table: 1989 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 55 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10399 Number of APNIC addresses announced to Internet: 751515392 Equivalent to 44 /8s, 203 /16s and 55 /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: 299045 Total ARIN prefixes after maximum aggregation: 134721 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300093 Unique aggregates announced from the ARIN address blocks: 144542 ARIN Region origin ASes present in the Internet Routing Table: 19350 ARIN Prefixes per ASN: 15.51 ARIN Region origin ASes announcing only one prefix: 7099 ARIN Region transit ASes present in the Internet Routing Table: 1989 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5374 Number of ARIN addresses announced to Internet: 1352965376 Equivalent to 80 /8s, 164 /16s and 157 /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: 280762 Total RIPE prefixes after maximum aggregation: 139053 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280760 Unique aggregates announced from the RIPE address blocks: 181302 RIPE Region origin ASes present in the Internet Routing Table: 29091 RIPE Prefixes per ASN: 9.65 RIPE Region origin ASes announcing only one prefix: 12096 RIPE Region transit ASes present in the Internet Routing Table: 4025 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12771 Number of RIPE addresses announced to Internet: 733029632 Equivalent to 43 /8s, 177 /16s and 37 /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: 125127 Total LACNIC prefixes after maximum aggregation: 30407 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121190 Unique aggregates announced from the LACNIC address blocks: 49459 LACNIC Region origin ASes present in the Internet Routing Table: 11309 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2681 LACNIC Region transit ASes present in the Internet Routing Table: 2546 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 91 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9284 Number of LACNIC addresses announced to Internet: 170642944 Equivalent to 10 /8s, 43 /16s and 206 /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: 34957 Total AfriNIC prefixes after maximum aggregation: 6884 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 48781 Unique aggregates announced from the AfriNIC address blocks: 16392 AfriNIC Region origin ASes present in the Internet Routing Table: 1973 AfriNIC Prefixes per ASN: 24.72 AfriNIC Region origin ASes announcing only one prefix: 716 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 56 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1337 Number of AfriNIC addresses announced to Internet: 103805440 Equivalent to 6 /8s, 47 /16s and 242 /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 13840 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6181 834 601 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4369 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3977 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3686 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3293 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3163 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2931 863 502 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2527 518 1631 HUTCHISON-AS-AP HGC Global Communications 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 14361 41086 5390 AMAZON-02, US 11492 4762 321 793 CABLEONE, US 22773 4300 3085 366 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3684 1320 82 SHAW, CA 396982 3273 4825 466 GOOGLE-CLOUD-PLATFORM, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 3122 241 1746 USDA-1, US 16625 3039 1301 2212 AKAMAI-AS, US 174 2926 8766 795 COGENT-174, 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 7377 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4040 3395 126 AKAMAI-ASN1, NL 9009 3949 372 2239 M247, RO 12389 3138 2313 866 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2540 181 1847 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1719 205 1003 HOSTROYALE, IN 8452 1689 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 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 12383 3261 584 UNINET, MX 10620 3480 468 1088 Telmex Colombia S.A., CO 13999 2517 511 347 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1376 2435 257 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1273 371 23 Telefonica del Peru S.A.A., PE 11664 1253 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1064 71 367 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 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 1767 594 28 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1188 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1010 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 577 82 3 KENET-AS, KE 15399 544 57 55 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 14361 41086 5390 AMAZON-02, US 9808 13840 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12383 3261 584 UNINET, MX 12479 7377 1711 149 UNI2-AS, ES 7545 6181 834 601 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4762 321 793 CABLEONE, US 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4369 347 24 FPT-AS-AP FPT Telecom Company, VN 22773 4300 3085 366 ASN-CXA-ALL-CCI-22773-RDC, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13840 13723 CHINAMOBILE-CN China Mobile Communications Grou 8151 12383 11799 UNINET, MX 12479 7377 7228 UNI2-AS, ES 7545 6181 5580 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4369 4345 FPT-AS-AP FPT Telecom Company, VN 9498 4477 4165 BBIL-AP BHARTI Airtel Ltd., IN 11492 4762 3969 CABLEONE, US 7552 3977 3949 VIETEL-AS-AP Viettel Group, VN 22773 4300 3934 ASN-CXA-ALL-CCI-22773-RDC, US 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 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS 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: 21859 ZEN-ECN, US 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, 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 /11:93 /12:300 /13:583 /14:1204 /15:2128 /16:13782 /17:8209 /18:13492 /19:24711 /20:44351 /21:51984 /22:112804 /23:104556 /24:632425 /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 8151 6610 12383 UNINET, MX 12479 6345 7377 UNI2-AS, ES 11492 3576 4762 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3473 3684 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2649 4300 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2406 14361 AMAZON-02, US 30036 2307 2648 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2215 3480 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) ---------------------------------------------- 1:2419 2:1566 3:942 4:10 5:4857 6:170 7:6 8:1520 9:6 11:172 12:1238 13:557 14:2650 15:404 16:302 17:387 18:905 20:577 21:4 22:188 23:8079 24:2603 25:2 27:2806 29:19 31:3332 32:31 33:1 34:81 35:271 36:4470 37:4552 38:9406 39:1107 40:472 41:4273 42:1948 43:2764 44:401 45:19113 46:5193 47:369 49:2082 50:2053 51:597 52:1633 54:353 55:1095 56:11 57:285 58:2288 59:1300 60:1189 61:2917 62:3090 63:1761 64:5812 65:2117 66:5572 67:3149 68:1469 69:4122 70:1034 71:634 72:2990 74:2834 75:1508 76:593 77:2764 78:1920 79:1748 80:2249 81:2141 82:3489 83:1481 84:1991 85:3550 86:1099 87:2143 88:1361 89:4515 90:814 91:8388 92:2812 93:2986 94:4150 95:4527 96:1494 97:311 98:949 99:754 100:71 101:1222 102:4216 103:32243 104:5456 105:787 106:880 107:2794 108:1199 109:4227 110:2249 111:3816 112:2706 113:1843 114:2067 115:2334 116:2084 117:3018 118:3037 119:1982 120:2305 121:1490 122:2810 123:2268 124:1656 125:2878 126:125 128:1605 129:959 130:1437 131:2176 132:793 133:461 134:1626 135:364 136:1494 137:1327 138:2827 139:1597 140:1640 141:1553 142:2169 143:2096 144:1288 145:629 146:2182 147:2139 148:2742 149:2939 150:1285 151:2630 152:2213 153:642 154:7801 155:2187 156:3177 157:1999 158:1443 159:2605 160:3642 161:2001 162:3955 163:2299 164:1954 165:2557 166:1564 167:2115 168:3816 169:785 170:5388 171:1061 172:4496 173:3428 174:904 175:1344 176:3752 177:4729 178:4309 179:2276 180:2736 181:4258 182:3750 183:2556 184:2089 185:21661 186:5348 187:4722 188:4381 189:4402 190:9715 191:1552 192:11413 193:9486 194:7830 195:5590 196:3291 197:3250 198:6255 199:8809 200:8184 201:6366 202:10467 203:10609 204:4633 205:3684 206:4430 207:3862 208:4245 209:5401 210:4743 211:2688 212:4873 213:3923 214:1029 215:52 216:7074 217:3363 218:1579 219:398 220:2193 221:1252 222:753 223:3070 End of report