IPv4 R&E Routing Table Report 21:10 GMT Thu 30 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: 1013936 Prefixes after maximum aggregation (per Origin AS): 393073 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 499554 Number of IPv4 prefixes with a valid ROA: 584665 Number of IPv4 prefixes with an invalid ROA: 130 Number of IPv4 prefixes with no ROA: 429141 Total ASes present in the Internet Routing Table: 77417 Prefixes per ASN: 13.10 Origin-only ASes present in the Internet Routing Table: 66284 Origin ASes announcing only one prefix: 27095 Transit ASes present in the Internet Routing Table: 11133 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: 52 Max AS path prepend of ASN ( 37447) 39 Prefixes from unregistered ASNs in the Routing Table: 992 Number of instances of unregistered ASNs: 1021 Number of 32-bit ASNs allocated by the RIRs: 47832 Number of 32-bit ASNs visible in the Routing Table: 39185 Prefixes from 32-bit ASNs in the Routing Table: 214371 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: 449 Number of addresses announced to Internet: 3112967680 Equivalent to 185 /8s, 140 /16s and 30 /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: 331251 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270676 Total APNIC prefixes after maximum aggregation: 80549 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 260432 Unique aggregates announced from the APNIC address blocks: 106135 APNIC Region origin ASes present in the Internet Routing Table: 14838 APNIC Prefixes per ASN: 17.55 APNIC Region origin ASes announcing only one prefix: 4528 APNIC Region transit ASes present in the Internet Routing Table: 1995 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: 10403 Number of APNIC addresses announced to Internet: 751626752 Equivalent to 44 /8s, 204 /16s and 234 /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: 300628 Total ARIN prefixes after maximum aggregation: 135217 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301068 Unique aggregates announced from the ARIN address blocks: 144854 ARIN Region origin ASes present in the Internet Routing Table: 19371 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7115 ARIN Region transit ASes present in the Internet Routing Table: 1986 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: 5396 Number of ARIN addresses announced to Internet: 1353192704 Equivalent to 80 /8s, 168 /16s and 21 /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: 281362 Total RIPE prefixes after maximum aggregation: 139443 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 281553 Unique aggregates announced from the RIPE address blocks: 181995 RIPE Region origin ASes present in the Internet Routing Table: 29082 RIPE Prefixes per ASN: 9.68 RIPE Region origin ASes announcing only one prefix: 12077 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: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12786 Number of RIPE addresses announced to Internet: 733743872 Equivalent to 43 /8s, 188 /16s and 11 /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: 125234 Total LACNIC prefixes after maximum aggregation: 30387 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121322 Unique aggregates announced from the LACNIC address blocks: 49501 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: 2675 LACNIC Region transit ASes present in the Internet Routing Table: 2561 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: 170674176 Equivalent to 10 /8s, 44 /16s and 72 /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: 35044 Total AfriNIC prefixes after maximum aggregation: 6813 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 49111 Unique aggregates announced from the AfriNIC address blocks: 16684 AfriNIC Region origin ASes present in the Internet Routing Table: 1936 AfriNIC Prefixes per ASN: 25.37 AfriNIC Region origin ASes announcing only one prefix: 700 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1308 Number of AfriNIC addresses announced to Internet: 103468288 Equivalent to 6 /8s, 42 /16s and 205 /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 13383 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6126 834 593 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4499 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 3716 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3304 1868 98 VNPT-AS-VN VNPT Corp, VN 56046 3248 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2933 863 514 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2486 273 1916 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 14426 41087 5386 AMAZON-02, US 11492 4772 316 800 CABLEONE, US 22773 4635 3107 404 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3685 1320 82 SHAW, CA 396982 3279 4826 470 GOOGLE-CLOUD-PLATFORM, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3139 243 1764 USDA-1, US 16625 2996 1281 2187 AKAMAI-AS, US 36352 2849 231 924 AS-COLOCROSSING, 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 7301 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4017 3395 124 AKAMAI-ASN1, NL 9009 4009 377 2282 M247, RO 12389 3141 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2531 178 1823 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1709 205 1000 HOSTROYALE, IN 8452 1672 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 12488 3301 570 UNINET, MX 10620 3456 463 1099 Telmex Colombia S.A., CO 13999 2510 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 1278 371 23 Telefonica del Peru S.A.A., PE 22884 1061 70 365 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 1963 630 32 RAYA-AS, EG 36992 1678 1509 399 ETISALAT-MISR, EG 24863 1262 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 36935 1119 523 47 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 563 82 3 KENET-AS, KE 3741 521 725 319 NTT-DATA-Inc, ZA 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 14426 41087 5386 AMAZON-02, US 9808 13383 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12488 3301 570 UNINET, MX 12479 7301 1711 149 UNI2-AS, ES 7545 6126 834 593 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4772 316 800 CABLEONE, US 22773 4635 3107 404 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4499 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 13383 13266 CHINAMOBILE-CN China Mobile Communications Grou 8151 12488 11918 UNINET, MX 12479 7301 7152 UNI2-AS, ES 7545 6126 5533 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4411 4387 FPT-AS-AP FPT Telecom Company, VN 22773 4635 4231 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4499 4187 BBIL-AP BHARTI Airtel Ltd., IN 11492 4772 3972 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 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 /14:1202 /15:2129 /16:13794 /17:8243 /18:13528 /19:24756 /20:44405 /21:52077 /22:112945 /23:104925 /24:634884 /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 6685 12488 UNINET, MX 12479 6260 7301 UNI2-AS, ES 11492 3585 4772 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3474 3685 SHAW, CA 22773 2986 4635 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2427 14426 AMAZON-02, US 30036 2304 2646 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) ---------------------------------------------- 1:2433 2:1556 3:965 4:10 5:4897 6:171 7:6 8:1507 9:6 11:172 12:1231 13:555 14:2656 15:401 16:303 17:387 18:909 20:580 21:4 22:188 23:8047 24:2606 25:2 27:2816 29:19 31:3357 32:31 33:1 34:81 35:275 36:4502 37:4544 38:9344 39:1169 40:469 41:4094 42:1960 43:2781 44:400 45:19172 46:5210 47:369 49:2131 50:2055 51:595 52:1628 54:357 55:1102 56:11 57:291 58:2290 59:1305 60:1193 61:2953 62:3104 63:1767 64:5870 65:2126 66:5896 67:3245 68:1486 69:4146 70:1034 71:638 72:2985 74:2878 75:1509 76:595 77:2766 78:1923 79:1784 80:2254 81:2124 82:3553 83:1468 84:1997 85:3592 86:1107 87:2156 88:1363 89:4516 90:813 91:8405 92:2810 93:2996 94:4162 95:4553 96:1491 97:312 98:947 99:751 100:71 101:1327 102:4153 103:32217 104:5457 105:784 106:905 107:2792 108:1198 109:4224 110:2248 111:3848 112:2755 113:1884 114:2083 115:2288 116:2096 117:3070 118:3058 119:1976 120:2347 121:1501 122:2813 123:2257 124:1660 125:2889 126:124 128:1608 129:964 130:1456 131:2206 132:784 133:461 134:1630 135:365 136:1493 137:1336 138:2830 139:1593 140:1677 141:1566 142:2195 143:2108 144:1308 145:627 146:2187 147:2135 148:2770 149:2822 150:1286 151:2641 152:2271 153:649 154:8127 155:2205 156:3240 157:2000 158:1454 159:2608 160:3716 161:2002 162:3983 163:2315 164:1949 165:2554 166:1512 167:2126 168:3796 169:766 170:5420 171:1061 172:4501 173:3428 174:905 175:1341 176:3752 177:4742 178:4308 179:2293 180:2752 181:4303 182:3776 183:2581 184:2069 185:21693 186:5391 187:4701 188:4388 189:4453 190:9706 191:1570 192:11431 193:9505 194:7838 195:5573 196:3210 197:3230 198:6279 199:8843 200:8220 201:6379 202:10483 203:10650 204:4631 205:3703 206:4410 207:3868 208:4266 209:5415 210:4756 211:2668 212:4887 213:3974 214:1039 215:53 216:7156 217:3402 218:1580 219:398 220:2195 221:1267 222:765 223:3111 End of report