IPv4 R&E Routing Table Report 21:10 GMT Wed 05 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: 1011509 Prefixes after maximum aggregation (per Origin AS): 391798 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 500301 Number of IPv4 prefixes with a valid ROA: 585512 Number of IPv4 prefixes with an invalid ROA: 131 Number of IPv4 prefixes with no ROA: 425866 Total ASes present in the Internet Routing Table: 77483 Prefixes per ASN: 13.05 Origin-only ASes present in the Internet Routing Table: 66337 Origin ASes announcing only one prefix: 27095 Transit ASes present in the Internet Routing Table: 11146 Transit-only ASes present in the Internet Routing Table: 562 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: 944 Number of instances of unregistered ASNs: 973 Number of 32-bit ASNs allocated by the RIRs: 47899 Number of 32-bit ASNs visible in the Routing Table: 39240 Prefixes from 32-bit ASNs in the Routing Table: 214774 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: 422 Number of addresses announced to Internet: 3103868672 Equivalent to 185 /8s, 1 /16s and 71 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 331761 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270814 Total APNIC prefixes after maximum aggregation: 80482 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 260550 Unique aggregates announced from the APNIC address blocks: 106166 APNIC Region origin ASes present in the Internet Routing Table: 14832 APNIC Prefixes per ASN: 17.57 APNIC Region origin ASes announcing only one prefix: 4524 APNIC Region transit ASes present in the Internet Routing Table: 2002 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10392 Number of APNIC addresses announced to Internet: 748388864 Equivalent to 44 /8s, 155 /16s and 130 /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: 297736 Total ARIN prefixes after maximum aggregation: 133668 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 298033 Unique aggregates announced from the ARIN address blocks: 145283 ARIN Region origin ASes present in the Internet Routing Table: 19382 ARIN Prefixes per ASN: 15.38 ARIN Region origin ASes announcing only one prefix: 7104 ARIN Region transit ASes present in the Internet Routing Table: 1986 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: 5409 Number of ARIN addresses announced to Internet: 1345102336 Equivalent to 80 /8s, 44 /16s and 162 /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: 281518 Total RIPE prefixes after maximum aggregation: 139638 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 281916 Unique aggregates announced from the RIPE address blocks: 182351 RIPE Region origin ASes present in the Internet Routing Table: 29096 RIPE Prefixes per ASN: 9.69 RIPE Region origin ASes announcing only one prefix: 12082 RIPE Region transit ASes present in the Internet Routing Table: 4028 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: 12795 Number of RIPE addresses announced to Internet: 735601664 Equivalent to 43 /8s, 216 /16s and 100 /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: 125344 Total LACNIC prefixes after maximum aggregation: 30441 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121404 Unique aggregates announced from the LACNIC address blocks: 49514 LACNIC Region origin ASes present in the Internet Routing Table: 11309 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2664 LACNIC Region transit ASes present in the Internet Routing Table: 2565 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: 9299 Number of LACNIC addresses announced to Internet: 170673664 Equivalent to 10 /8s, 44 /16s and 70 /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: 35153 Total AfriNIC prefixes after maximum aggregation: 6925 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 49183 Unique aggregates announced from the AfriNIC address blocks: 16614 AfriNIC Region origin ASes present in the Internet Routing Table: 1986 AfriNIC Prefixes per ASN: 24.76 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: 1345 Number of AfriNIC addresses announced to Internet: 103877120 Equivalent to 6 /8s, 49 /16s and 10 /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 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6098 833 589 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4510 538 316 BBIL-AP BHARTI Airtel Ltd., IN 18403 4402 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3980 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3718 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3305 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3244 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2930 863 501 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 14257 37275 5377 AMAZON-02, US 11492 4777 317 799 CABLEONE, US 22773 4636 3107 405 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3671 1320 82 SHAW, CA 396982 3285 4827 474 GOOGLE-CLOUD-PLATFORM, US 749 3216 54766 2467 DNIC-AS-00749, US 16625 3019 1293 2194 AKAMAI-AS, US 36352 2851 231 921 AS-COLOCROSSING, US 30036 2652 365 304 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 7292 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4022 3395 127 AKAMAI-ASN1, NL 9009 4010 377 2277 M247, RO 12389 3152 2317 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2536 178 1827 CDNEXT, GB 34984 2417 363 576 TELLCOM-AS, TR 8452 1655 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1577 183 904 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 12502 3298 576 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2503 511 350 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1376 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1305 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1275 371 23 Telefonica del Peru S.A.A., PE 22884 1062 70 366 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1026 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 1788 594 28 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 1165 100 70 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1016 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 565 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 14257 37275 5377 AMAZON-02, US 9808 13392 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12502 3298 576 UNINET, MX 12479 7292 1711 149 UNI2-AS, ES 7545 6098 833 589 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4777 317 799 CABLEONE, US 22773 4636 3107 405 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4510 538 316 BBIL-AP BHARTI Airtel Ltd., IN 18403 4402 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 13392 13275 CHINAMOBILE-CN China Mobile Communications Grou 8151 12502 11926 UNINET, MX 12479 7292 7143 UNI2-AS, ES 7545 6098 5509 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4402 4378 FPT-AS-AP FPT Telecom Company, VN 22773 4636 4231 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4510 4194 BBIL-AP BHARTI Airtel Ltd., IN 11492 4777 3978 CABLEONE, US 7552 3980 3952 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 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 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 /8:18 /9:14 /10:41 /11:94 /12:298 /13:581 /14:1200 /15:2097 /16:13684 /17:8211 /18:13487 /19:24715 /20:44356 /21:52047 /22:112666 /23:105086 /24:632913 /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 6708 12502 UNINET, MX 12479 6236 7292 UNI2-AS, ES 11492 3590 4777 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3460 3671 SHAW, CA 22773 2986 4636 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2431 14257 AMAZON-02, US 30036 2309 2652 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) ---------------------------------------------- 1:2432 2:1565 3:968 4:10 5:4901 6:174 7:6 8:1507 9:6 11:172 12:1238 13:542 14:2646 15:404 16:298 17:387 18:911 20:581 21:4 22:188 23:8100 24:2609 25:2 27:2812 29:19 31:3359 32:31 33:1 34:84 35:275 36:4502 37:4571 38:9342 39:1174 40:465 41:4336 42:1934 43:2781 44:407 45:19199 46:5204 47:365 49:2145 50:2056 51:596 52:1628 54:355 55:1095 56:11 57:292 58:2290 59:1309 60:1187 61:2982 62:3101 63:1761 64:5890 65:2128 66:5890 67:3243 68:1484 69:4142 70:1033 71:634 72:2984 74:2888 75:1513 76:600 77:2769 78:1925 79:1783 80:2271 81:2134 82:3584 83:1465 84:2011 85:3588 86:1105 87:2153 88:1364 89:4509 90:832 91:8398 92:2826 93:2996 94:4155 95:4558 96:1484 97:316 98:948 99:754 100:68 101:1340 102:4237 103:32184 104:5465 105:793 106:909 107:2790 108:1198 109:4221 110:2249 111:3858 112:2757 113:1890 114:2087 115:2287 116:2105 117:3093 118:3064 119:2007 120:2348 121:1505 122:2852 123:2277 124:1597 125:2894 126:124 128:1611 129:965 130:1489 131:2224 132:782 133:460 134:1630 135:365 136:1496 137:1331 138:2851 139:1596 140:1668 141:1578 142:2215 143:2136 144:1323 145:631 146:2191 147:2118 148:2769 149:2823 150:1277 151:2635 152:2272 153:651 154:8128 155:2222 156:3276 157:2060 158:1400 159:2663 160:3773 161:2002 162:3993 163:2324 164:1955 165:2550 166:1320 167:2125 168:3821 169:788 170:5454 171:1065 172:4489 173:3429 174:906 175:1345 176:3755 177:4741 178:4298 179:2262 180:2750 181:4311 182:3793 183:2608 184:2084 185:21694 186:5393 187:4701 188:4391 189:4473 190:9698 191:1563 192:11454 193:9508 194:7841 195:5592 196:3233 197:3239 198:6216 199:6104 200:8229 201:6373 202:10497 203:10595 204:4628 205:3708 206:4405 207:3869 208:4264 209:5379 210:4750 211:2648 212:4897 213:3975 214:1036 215:53 216:7149 217:3395 218:1575 219:400 220:2195 221:1268 222:765 223:3107 End of report