IPv4 R&E Routing Table Report 21:10 GMT Mon 03 Nov, 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: 1011283 Prefixes after maximum aggregation (per Origin AS): 391531 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 500324 Number of IPv4 prefixes with a valid ROA: 585031 Number of IPv4 prefixes with an invalid ROA: 131 Number of IPv4 prefixes with no ROA: 426118 Total ASes present in the Internet Routing Table: 77494 Prefixes per ASN: 13.05 Origin-only ASes present in the Internet Routing Table: 66352 Origin ASes announcing only one prefix: 27134 Transit ASes present in the Internet Routing Table: 11142 Transit-only ASes present in the Internet Routing Table: 560 Paths with bogon ASNs present in the IPv4 Routing Table: 5 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN (207092) 41 Prefixes from unregistered ASNs in the Routing Table: 942 Number of instances of unregistered ASNs: 971 Number of 32-bit ASNs allocated by the RIRs: 47880 Number of 32-bit ASNs visible in the Routing Table: 39243 Prefixes from 32-bit ASNs in the Routing Table: 214701 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 417 Number of addresses announced to Internet: 3116242432 Equivalent to 185 /8s, 190 /16s and 22 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 331719 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270640 Total APNIC prefixes after maximum aggregation: 80525 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 260441 Unique aggregates announced from the APNIC address blocks: 106244 APNIC Region origin ASes present in the Internet Routing Table: 14845 APNIC Prefixes per ASN: 17.54 APNIC Region origin ASes announcing only one prefix: 4539 APNIC Region transit ASes present in the Internet Routing Table: 1997 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10402 Number of APNIC addresses announced to Internet: 751672320 Equivalent to 44 /8s, 205 /16s and 156 /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: 297768 Total ARIN prefixes after maximum aggregation: 133573 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 298223 Unique aggregates announced from the ARIN address blocks: 145437 ARIN Region origin ASes present in the Internet Routing Table: 19380 ARIN Prefixes per ASN: 15.39 ARIN Region origin ASes announcing only one prefix: 7113 ARIN Region transit ASes present in the Internet Routing Table: 1987 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5407 Number of ARIN addresses announced to Internet: 1353346816 Equivalent to 80 /8s, 170 /16s and 111 /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: 281365 Total RIPE prefixes after maximum aggregation: 139470 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 281643 Unique aggregates announced from the RIPE address blocks: 182090 RIPE Region origin ASes present in the Internet Routing Table: 29100 RIPE Prefixes per ASN: 9.68 RIPE Region origin ASes announcing only one prefix: 12092 RIPE Region transit ASes present in the Internet Routing Table: 4036 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12800 Number of RIPE addresses announced to Internet: 736722176 Equivalent to 43 /8s, 233 /16s and 125 /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: 125327 Total LACNIC prefixes after maximum aggregation: 30401 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121402 Unique aggregates announced from the LACNIC address blocks: 49485 LACNIC Region origin ASes present in the Internet Routing Table: 11309 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2669 LACNIC Region transit ASes present in the Internet Routing Table: 2558 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9293 Number of LACNIC addresses announced to Internet: 170705920 Equivalent to 10 /8s, 44 /16s and 196 /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: 35241 Total AfriNIC prefixes after maximum aggregation: 6915 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 49156 Unique aggregates announced from the AfriNIC address blocks: 16695 AfriNIC Region origin ASes present in the Internet Routing Table: 1982 AfriNIC Prefixes per ASN: 24.80 AfriNIC Region origin ASes announcing only one prefix: 721 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1341 Number of AfriNIC addresses announced to Internet: 103572480 Equivalent to 6 /8s, 44 /16s and 100 /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 13385 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6098 833 589 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4502 537 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4411 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3985 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3718 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3306 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3244 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2936 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2489 273 1919 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14452 41089 5389 AMAZON-02, US 11492 4776 317 802 CABLEONE, US 22773 4634 3107 404 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3687 1320 82 SHAW, CA 396982 3281 4826 471 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 3011 1289 2192 AKAMAI-AS, US 36352 2851 231 921 AS-COLOCROSSING, US 30036 2649 363 318 MEDIACOM-ENTERPRISE-BUSINESS, 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 7286 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4018 3395 124 AKAMAI-ASN1, NL 9009 4012 377 2279 M247, RO 12389 3150 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2527 177 1819 CDNEXT, GB 34984 2416 363 574 TELLCOM-AS, TR 8452 1650 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1595 186 923 HOSTROYALE, IN 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 12497 3301 570 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2506 511 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1375 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1294 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1276 371 23 Telefonica del Peru S.A.A., PE 22884 1062 70 366 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1025 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 1836 630 32 RAYA-AS, EG 36992 1679 1509 397 ETISALAT-MISR, EG 24863 1263 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1191 102 52 ORANGE-COTE-IVOIRE, CI 36935 1119 523 47 Vodafone-, EG 37069 1029 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 567 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 14452 41089 5389 AMAZON-02, US 9808 13385 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12497 3301 570 UNINET, MX 12479 7286 1711 149 UNI2-AS, ES 7545 6098 833 589 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4776 317 802 CABLEONE, US 22773 4634 3107 404 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4502 537 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4411 347 24 FPT-AS-AP FPT Telecom Company, VN 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 13385 13268 CHINAMOBILE-CN China Mobile Communications Grou 8151 12497 11927 UNINET, MX 12479 7286 7137 UNI2-AS, ES 7545 6098 5509 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4411 4387 FPT-AS-AP FPT Telecom Company, VN 22773 4634 4230 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4502 4190 BBIL-AP BHARTI Airtel Ltd., IN 11492 4776 3974 CABLEONE, US 7552 3985 3957 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 53775 UNALLOCATED 8.20.88.0/24 3737 AS-PTD, 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /11:94 /12:299 /13:584 /14:1203 /15:2132 /16:13805 /17:8213 /18:13515 /19:24723 /20:44336 /21:52070 /22:112794 /23:104896 /24:632547 /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 6693 12497 UNINET, MX 12479 6247 7286 UNI2-AS, ES 11492 3589 4776 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3476 3687 SHAW, CA 22773 2985 4634 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2441 14452 AMAZON-02, US 30036 2307 2649 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2210 3455 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) ---------------------------------------------- 1:2430 2:1564 3:969 4:10 5:4890 6:172 7:6 8:1509 9:6 11:172 12:1240 13:549 14:2647 15:402 16:303 17:387 18:911 20:581 21:4 22:188 23:8100 24:2608 25:2 27:2813 29:19 31:3355 32:31 33:1 34:81 35:275 36:4500 37:4552 38:9354 39:1174 40:469 41:4307 42:1948 43:2774 44:405 45:19186 46:5201 47:368 49:2136 50:2052 51:594 52:1628 54:357 55:1096 56:11 57:292 58:2289 59:1309 60:1187 61:2983 62:3103 63:1759 64:5899 65:2128 66:5900 67:3248 68:1483 69:4153 70:1034 71:638 72:2987 74:2888 75:1513 76:600 77:2765 78:1928 79:1787 80:2268 81:2133 82:3581 83:1472 84:2003 85:3589 86:1108 87:2155 88:1362 89:4510 90:814 91:8391 92:2810 93:2997 94:4164 95:4558 96:1487 97:312 98:947 99:758 100:71 101:1331 102:4224 103:32171 104:5467 105:795 106:910 107:2791 108:1196 109:4212 110:2251 111:3851 112:2754 113:1885 114:2084 115:2287 116:2100 117:3071 118:3065 119:2002 120:2346 121:1502 122:2855 123:2257 124:1660 125:2893 126:124 128:1609 129:964 130:1455 131:2216 132:783 133:461 134:1626 135:366 136:1492 137:1333 138:2832 139:1592 140:1678 141:1573 142:2188 143:2124 144:1323 145:632 146:2187 147:2116 148:2779 149:2830 150:1276 151:2638 152:2270 153:648 154:8109 155:2201 156:3214 157:2001 158:1402 159:2630 160:3775 161:2003 162:3990 163:2318 164:1954 165:2551 166:1320 167:2123 168:3798 169:779 170:5416 171:1063 172:4494 173:3432 174:905 175:1342 176:3751 177:4741 178:4308 179:2299 180:2750 181:4301 182:3783 183:2592 184:2077 185:21695 186:5386 187:4712 188:4389 189:4446 190:9704 191:1586 192:11451 193:9502 194:7844 195:5581 196:3277 197:3238 198:6277 199:6100 200:8215 201:6377 202:10487 203:10601 204:4629 205:3700 206:4395 207:3866 208:4266 209:5428 210:4753 211:2649 212:4889 213:3975 214:1033 215:53 216:7148 217:3394 218:1576 219:398 220:2196 221:1267 222:765 223:3102 End of report