IPv4 R&E Routing Table Report 21:10 GMT Thu 23 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: 1011857 Prefixes after maximum aggregation (per Origin AS): 392602 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 498610 Number of IPv4 prefixes with a valid ROA: 581731 Number of IPv4 prefixes with an invalid ROA: 126 Number of IPv4 prefixes with no ROA: 430000 Total ASes present in the Internet Routing Table: 77469 Prefixes per ASN: 13.06 Origin-only ASes present in the Internet Routing Table: 66330 Origin ASes announcing only one prefix: 27122 Transit ASes present in the Internet Routing Table: 11139 Transit-only ASes present in the Internet Routing Table: 556 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: 63 Max AS path prepend of ASN (265605) 35 Prefixes from unregistered ASNs in the Routing Table: 967 Number of instances of unregistered ASNs: 996 Number of 32-bit ASNs allocated by the RIRs: 47788 Number of 32-bit ASNs visible in the Routing Table: 39201 Prefixes from 32-bit ASNs in the Routing Table: 213822 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: 430 Number of addresses announced to Internet: 3111749376 Equivalent to 185 /8s, 121 /16s and 135 /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: 330381 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270099 Total APNIC prefixes after maximum aggregation: 80509 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 259699 Unique aggregates announced from the APNIC address blocks: 106018 APNIC Region origin ASes present in the Internet Routing Table: 14852 APNIC Prefixes per ASN: 17.49 APNIC Region origin ASes announcing only one prefix: 4533 APNIC Region transit ASes present in the Internet Routing Table: 1992 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: 10409 Number of APNIC addresses announced to Internet: 751465216 Equivalent to 44 /8s, 202 /16s and 115 /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: 299532 Total ARIN prefixes after maximum aggregation: 134995 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300508 Unique aggregates announced from the ARIN address blocks: 144681 ARIN Region origin ASes present in the Internet Routing Table: 19357 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7099 ARIN Region transit ASes present in the Internet Routing Table: 1984 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: 5384 Number of ARIN addresses announced to Internet: 1352436992 Equivalent to 80 /8s, 156 /16s and 141 /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: 280923 Total RIPE prefixes after maximum aggregation: 139121 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280878 Unique aggregates announced from the RIPE address blocks: 181462 RIPE Region origin ASes present in the Internet Routing Table: 29092 RIPE Prefixes per ASN: 9.65 RIPE Region origin ASes announcing only one prefix: 12094 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: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12780 Number of RIPE addresses announced to Internet: 733210368 Equivalent to 43 /8s, 179 /16s and 231 /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: 125196 Total LACNIC prefixes after maximum aggregation: 30422 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121256 Unique aggregates announced from the LACNIC address blocks: 49541 LACNIC Region origin ASes present in the Internet Routing Table: 11311 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2678 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: 9289 Number of LACNIC addresses announced to Internet: 170702080 Equivalent to 10 /8s, 44 /16s and 181 /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: 35140 Total AfriNIC prefixes after maximum aggregation: 6898 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 49085 Unique aggregates announced from the AfriNIC address blocks: 16531 AfriNIC Region origin ASes present in the Internet Routing Table: 1978 AfriNIC Prefixes per ASN: 24.82 AfriNIC Region origin ASes announcing only one prefix: 718 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1339 Number of AfriNIC addresses announced to Internet: 103708672 Equivalent to 6 /8s, 46 /16s and 120 /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 13306 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6126 834 591 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4479 536 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4371 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3977 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3715 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3298 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3234 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2932 863 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2411 509 1560 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 14354 41104 5386 AMAZON-02, US 11492 4773 322 789 CABLEONE, US 22773 4282 3085 369 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3860 286 85 VIASAT-SP-BACKBONE, US 6327 3685 1320 82 SHAW, CA 396982 3278 4826 469 GOOGLE-CLOUD-PLATFORM, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3121 241 1747 USDA-1, US 16625 3015 1288 2201 AKAMAI-AS, US 174 2911 8765 822 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 7351 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4032 3395 126 AKAMAI-ASN1, NL 9009 3984 375 2273 M247, RO 12389 3108 2310 843 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2505 177 1813 CDNEXT, GB 34984 2416 363 577 TELLCOM-AS, TR 203020 1722 206 1003 HOSTROYALE, IN 8452 1670 1852 13 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 12441 3291 572 UNINET, MX 10620 3455 463 1098 Telmex Colombia S.A., CO 13999 2510 510 349 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1373 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1279 371 23 Telefonica del Peru S.A.A., PE 11664 1263 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1064 71 367 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1013 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 1925 630 32 RAYA-AS, EG 36992 1513 1498 386 ETISALAT-MISR, EG 24863 1263 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 36935 1117 522 45 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 574 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 14354 41104 5386 AMAZON-02, US 9808 13306 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12441 3291 572 UNINET, MX 12479 7351 1711 149 UNI2-AS, ES 7545 6126 834 591 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4773 322 789 CABLEONE, US 9498 4479 536 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4371 347 24 FPT-AS-AP FPT Telecom Company, VN 22773 4282 3085 369 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 13306 13189 CHINAMOBILE-CN China Mobile Communications Grou 8151 12441 11869 UNINET, MX 12479 7351 7202 UNI2-AS, ES 7545 6126 5535 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4371 4347 FPT-AS-AP FPT Telecom Company, VN 9498 4479 4166 BBIL-AP BHARTI Airtel Ltd., IN 11492 4773 3984 CABLEONE, US 7552 3977 3949 VIETEL-AS-AP Viettel Group, VN 22773 4282 3913 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 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 /11:93 /12:300 /13:583 /14:1204 /15:2128 /16:13773 /17:8216 /18:13493 /19:24711 /20:44366 /21:52036 /22:112888 /23:104698 /24:633296 /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 6650 12441 UNINET, MX 12479 6310 7351 UNI2-AS, ES 11492 3586 4773 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3474 3685 SHAW, CA 7155 2819 3860 VIASAT-SP-BACKBONE, US 22773 2627 4282 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2425 14354 AMAZON-02, US 30036 2287 2629 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) ---------------------------------------------- 1:2425 2:1564 3:945 4:10 5:4870 6:170 7:6 8:1511 9:6 11:172 12:1239 13:546 14:2654 15:402 16:303 17:387 18:907 20:579 21:4 22:188 23:8088 24:2608 25:2 27:2810 29:19 31:3341 32:31 33:1 34:81 35:275 36:4498 37:4555 38:9561 39:1097 40:472 41:4276 42:1944 43:2760 44:402 45:19167 46:5196 47:369 49:2096 50:2049 51:596 52:1629 54:355 55:1106 56:11 57:287 58:2283 59:1292 60:1189 61:2919 62:3080 63:1763 64:5824 65:2132 66:5618 67:3152 68:1474 69:4128 70:1033 71:637 72:2972 74:2866 75:1512 76:598 77:2764 78:1918 79:1752 80:2246 81:2143 82:3480 83:1479 84:1995 85:3576 86:1099 87:2144 88:1359 89:4514 90:812 91:8404 92:2815 93:2986 94:4156 95:4517 96:1491 97:313 98:948 99:754 100:71 101:1219 102:4212 103:32277 104:5448 105:784 106:896 107:2775 108:1203 109:4227 110:2250 111:3821 112:2718 113:1852 114:2070 115:2286 116:2088 117:3032 118:3029 119:1998 120:2320 121:1490 122:2810 123:2266 124:1655 125:2884 126:124 128:1601 129:961 130:1434 131:2179 132:794 133:460 134:1627 135:365 136:1495 137:1334 138:2820 139:1585 140:1642 141:1556 142:2214 143:2078 144:1294 145:629 146:2187 147:2130 148:2756 149:2885 150:1285 151:2623 152:2220 153:645 154:7919 155:2196 156:3172 157:2006 158:1451 159:2608 160:3649 161:2003 162:3970 163:2307 164:1954 165:2560 166:1515 167:2117 168:3799 169:779 170:5388 171:1058 172:4488 173:3420 174:902 175:1342 176:3755 177:4737 178:4311 179:2283 180:2735 181:4287 182:3753 183:2560 184:2088 185:21681 186:5359 187:4690 188:4386 189:4402 190:9730 191:1561 192:11416 193:9493 194:7837 195:5573 196:3271 197:3233 198:6259 199:8803 200:8204 201:6364 202:10490 203:10639 204:4636 205:3699 206:4415 207:3867 208:4268 209:5424 210:4744 211:2689 212:4900 213:3931 214:1039 215:53 216:7169 217:3364 218:1578 219:397 220:2195 221:1259 222:756 223:3099 End of report