IPv4 R&E Routing Table Report 21:10 GMT Fri 24 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: 1012252 Prefixes after maximum aggregation (per Origin AS): 392697 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 498557 Number of IPv4 prefixes with a valid ROA: 582438 Number of IPv4 prefixes with an invalid ROA: 125 Number of IPv4 prefixes with no ROA: 429689 Total ASes present in the Internet Routing Table: 77450 Prefixes per ASN: 13.07 Origin-only ASes present in the Internet Routing Table: 66303 Origin ASes announcing only one prefix: 27106 Transit ASes present in the Internet Routing Table: 11147 Transit-only ASes present in the Internet Routing Table: 557 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: 64 Max AS path prepend of ASN ( 37447) 59 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: 47797 Number of 32-bit ASNs visible in the Routing Table: 39182 Prefixes from 32-bit ASNs in the Routing Table: 213712 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: 428 Number of addresses announced to Internet: 3111622400 Equivalent to 185 /8s, 119 /16s and 151 /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: 330542 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270206 Total APNIC prefixes after maximum aggregation: 80547 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 259738 Unique aggregates announced from the APNIC address blocks: 105967 APNIC Region origin ASes present in the Internet Routing Table: 14836 APNIC Prefixes per ASN: 17.51 APNIC Region origin ASes announcing only one prefix: 4531 APNIC Region transit ASes present in the Internet Routing Table: 1991 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10394 Number of APNIC addresses announced to Internet: 751450624 Equivalent to 44 /8s, 202 /16s and 58 /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: 299721 Total ARIN prefixes after maximum aggregation: 135088 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300541 Unique aggregates announced from the ARIN address blocks: 144719 ARIN Region origin ASes present in the Internet Routing Table: 19369 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7106 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: 5391 Number of ARIN addresses announced to Internet: 1352359424 Equivalent to 80 /8s, 155 /16s and 94 /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: 280974 Total RIPE prefixes after maximum aggregation: 139145 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280954 Unique aggregates announced from the RIPE address blocks: 181489 RIPE Region origin ASes present in the Internet Routing Table: 29087 RIPE Prefixes per ASN: 9.66 RIPE Region origin ASes announcing only one prefix: 12083 RIPE Region transit ASes present in the Internet Routing Table: 4034 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: 12779 Number of RIPE addresses announced to Internet: 733242880 Equivalent to 43 /8s, 180 /16s and 102 /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: 125252 Total LACNIC prefixes after maximum aggregation: 30396 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121368 Unique aggregates announced from the LACNIC address blocks: 49473 LACNIC Region origin ASes present in the Internet Routing Table: 11314 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2556 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: 9292 Number of LACNIC addresses announced to Internet: 170652672 Equivalent to 10 /8s, 43 /16s and 244 /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: 35132 Total AfriNIC prefixes after maximum aggregation: 6864 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 49222 Unique aggregates announced from the AfriNIC address blocks: 16533 AfriNIC Region origin ASes present in the Internet Routing Table: 1964 AfriNIC Prefixes per ASN: 25.06 AfriNIC Region origin ASes announcing only one prefix: 708 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: 64 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1326 Number of AfriNIC addresses announced to Internet: 103691008 Equivalent to 6 /8s, 46 /16s and 51 /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 13307 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6128 834 592 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4479 536 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4422 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3983 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3715 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3299 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3234 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2934 863 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2407 268 1875 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 14386 41104 5392 AMAZON-02, US 11492 4772 316 803 CABLEONE, US 22773 4283 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 3217 54766 2468 DNIC-AS-00749, US 4155 3131 243 1751 USDA-1, US 16625 3012 1287 2198 AKAMAI-AS, US 174 2911 8766 827 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 7352 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4025 3395 126 AKAMAI-ASN1, NL 9009 3984 376 2269 M247, RO 12389 3142 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2508 177 1816 CDNEXT, GB 34984 2416 363 577 TELLCOM-AS, TR 203020 1722 206 1003 HOSTROYALE, IN 8452 1675 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 12437 3271 579 UNINET, MX 10620 3456 463 1099 Telmex Colombia S.A., CO 13999 2510 510 349 Mega Cable, S.A. de C.V., MX 11830 1990 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 1280 371 23 Telefonica del Peru S.A.A., PE 11664 1263 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1063 71 367 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1024 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 1101 521 44 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 566 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 14386 41104 5392 AMAZON-02, US 9808 13307 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12437 3271 579 UNINET, MX 12479 7352 1711 149 UNI2-AS, ES 7545 6128 834 592 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4772 316 803 CABLEONE, US 9498 4479 536 313 BBIL-AP BHARTI Airtel Ltd., IN 18403 4422 347 24 FPT-AS-AP FPT Telecom Company, VN 22773 4283 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 13307 13190 CHINAMOBILE-CN China Mobile Communications Grou 8151 12437 11858 UNINET, MX 12479 7352 7203 UNI2-AS, ES 7545 6128 5536 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4422 4398 FPT-AS-AP FPT Telecom Company, VN 9498 4479 4166 BBIL-AP BHARTI Airtel Ltd., IN 11492 4772 3969 CABLEONE, US 7552 3983 3955 VIETEL-AS-AP Viettel Group, VN 22773 4283 3914 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 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 /11:93 /12:300 /13:583 /14:1201 /15:2128 /16:13785 /17:8245 /18:13498 /19:24718 /20:44432 /21:52074 /22:112898 /23:104730 /24:633495 /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 6656 12437 UNINET, MX 12479 6311 7352 UNI2-AS, ES 11492 3586 4772 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3474 3685 SHAW, CA 7155 2819 3860 VIASAT-SP-BACKBONE, US 22773 2628 4283 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2427 14386 AMAZON-02, US 30036 2295 2637 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3456 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 3:952 4:10 5:4879 6:170 7:6 8:1513 9:6 11:172 12:1239 13:543 14:2653 15:402 16:303 17:387 18:907 20:579 21:4 22:188 23:8095 24:2609 25:2 27:2810 29:19 31:3350 32:31 33:1 34:81 35:275 36:4497 37:4543 38:9529 39:1097 40:472 41:4309 42:1959 43:2754 44:403 45:19193 46:5199 47:369 49:2101 50:2051 51:596 52:1630 54:357 55:1057 56:11 57:288 58:2284 59:1295 60:1189 61:2919 62:3095 63:1764 64:5846 65:2132 66:5621 67:3152 68:1473 69:4136 70:1035 71:637 72:2973 74:2870 75:1511 76:598 77:2765 78:1920 79:1752 80:2241 81:2127 82:3472 83:1473 84:1996 85:3583 86:1097 87:2143 88:1365 89:4520 90:814 91:8399 92:2811 93:2986 94:4159 95:4517 96:1489 97:313 98:948 99:754 100:71 101:1219 102:4218 103:32219 104:5451 105:778 106:896 107:2776 108:1204 109:4224 110:2249 111:3817 112:2721 113:1860 114:2070 115:2286 116:2089 117:3033 118:3054 119:1997 120:2321 121:1490 122:2810 123:2270 124:1656 125:2884 126:124 128:1598 129:963 130:1447 131:2177 132:794 133:461 134:1628 135:365 136:1488 137:1335 138:2820 139:1589 140:1643 141:1555 142:2215 143:2081 144:1295 145:629 146:2187 147:2129 148:2760 149:2878 150:1284 151:2622 152:2216 153:648 154:7951 155:2193 156:3230 157:2004 158:1452 159:2607 160:3647 161:2004 162:3977 163:2303 164:1952 165:2558 166:1514 167:2111 168:3796 169:781 170:5391 171:1059 172:4479 173:3422 174:904 175:1343 176:3756 177:4724 178:4311 179:2286 180:2733 181:4292 182:3753 183:2560 184:2073 185:21675 186:5377 187:4699 188:4388 189:4426 190:9747 191:1561 192:11410 193:9499 194:7838 195:5576 196:3264 197:3216 198:6257 199:8838 200:8214 201:6386 202:10496 203:10640 204:4640 205:3700 206:4405 207:3875 208:4264 209:5416 210:4745 211:2688 212:4906 213:3932 214:1042 215:53 216:7146 217:3363 218:1575 219:398 220:2196 221:1259 222:755 223:3098 End of report