IPv4 R&E Routing Table Report 21:10 GMT Sun 20 Jul, 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: 989473 Prefixes after maximum aggregation (per Origin AS): 383137 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 486979 Number of IPv4 prefixes with a valid ROA: 555997 Number of IPv4 prefixes with an invalid ROA: 134 Number of IPv4 prefixes with no ROA: 433342 Total ASes present in the Internet Routing Table: 77007 Prefixes per ASN: 12.85 Origin-only ASes present in the Internet Routing Table: 65943 Origin ASes announcing only one prefix: 26926 Transit ASes present in the Internet Routing Table: 11064 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 25 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 7438) 33 Prefixes from unregistered ASNs in the Routing Table: 1113 Number of instances of unregistered ASNs: 1147 Number of 32-bit ASNs allocated by the RIRs: 46910 Number of 32-bit ASNs visible in the Routing Table: 38585 Prefixes from 32-bit ASNs in the Routing Table: 205509 Number of bogon 32-bit ASNs visible in the Routing Table: 95 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 433 Number of addresses announced to Internet: 3106923776 Equivalent to 185 /8s, 47 /16s and 229 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 322808 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261530 Total APNIC prefixes after maximum aggregation: 77840 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 252401 Unique aggregates announced from the APNIC address blocks: 104940 APNIC Region origin ASes present in the Internet Routing Table: 14708 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4500 APNIC Region transit ASes present in the Internet Routing Table: 1984 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10251 Number of APNIC addresses announced to Internet: 749121024 Equivalent to 44 /8s, 166 /16s and 174 /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: 291298 Total ARIN prefixes after maximum aggregation: 132036 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 293035 Unique aggregates announced from the ARIN address blocks: 141138 ARIN Region origin ASes present in the Internet Routing Table: 19232 ARIN Prefixes per ASN: 15.24 ARIN Region origin ASes announcing only one prefix: 7034 ARIN Region transit ASes present in the Internet Routing Table: 1999 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5261 Number of ARIN addresses announced to Internet: 1349204480 Equivalent to 80 /8s, 107 /16s and 58 /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: 276515 Total RIPE prefixes after maximum aggregation: 136048 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 275593 Unique aggregates announced from the RIPE address blocks: 177450 RIPE Region origin ASes present in the Internet Routing Table: 28944 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12047 RIPE Region transit ASes present in the Internet Routing Table: 3993 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12556 Number of RIPE addresses announced to Internet: 732236544 Equivalent to 43 /8s, 165 /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: 124493 Total LACNIC prefixes after maximum aggregation: 29714 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120837 Unique aggregates announced from the LACNIC address blocks: 49186 LACNIC Region origin ASes present in the Internet Routing Table: 11257 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2527 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9225 Number of LACNIC addresses announced to Internet: 171101952 Equivalent to 10 /8s, 50 /16s and 207 /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: 34524 Total AfriNIC prefixes after maximum aggregation: 6758 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 47173 Unique aggregates announced from the AfriNIC address blocks: 13894 AfriNIC Region origin ASes present in the Internet Routing Table: 1925 AfriNIC Prefixes per ASN: 24.51 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 32 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1292 Number of AfriNIC addresses announced to Internet: 105014784 Equivalent to 6 /8s, 66 /16s and 102 /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 11823 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6159 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4484 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4445 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3701 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3278 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2905 863 520 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2736 811 177 CMNET-JIANGSU-AP China Mobile communicati 4755 2184 434 193 TATACOMM-AS TATA Communications formerly 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 13696 40976 5292 AMAZON-02, US 11492 4813 319 611 CABLEONE, US 7155 3855 286 85 VIASAT-SP-BACKBONE, US 6327 3624 1320 82 SHAW, CA 174 3446 8771 858 COGENT-174, US 22773 3341 3031 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 396982 3196 3855 432 GOOGLE-CLOUD-PLATFORM, US 16625 3065 1298 2224 AKAMAI-AS, US 4155 2860 217 1733 USDA-1, 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 7605 1712 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4038 3395 127 AKAMAI-ASN1, NL 9009 3786 361 2107 M247, RO 12389 3120 2317 873 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 583 TELLCOM-AS, TR 212238 2321 164 1689 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1545 1852 14 TE-AS TE-AS, EG 203020 1475 163 648 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 12309 3259 574 UNINET, MX 10620 3513 481 1019 Telmex Colombia S.A., CO 13999 2529 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1201 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1194 371 22 Telefonica del Peru S.A.A., PE 22884 1068 71 372 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1022 373 162 Axtel, S.A.B. de C.V., MX 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 1732 660 28 RAYA-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1256 1484 342 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1213 389 22 LINKdotNET-AS, EG 37069 1097 1112 11 MOBINIL, EG 36935 822 520 43 Vodafone-, EG 36914 576 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 532 56 54 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 13696 40976 5292 AMAZON-02, US 8151 12309 3259 574 UNINET, MX 9808 11823 8762 116 CHINAMOBILE-CN China Mobile Communication 12479 7605 1712 148 UNI2-AS, ES 7545 6159 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4813 319 611 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4484 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4445 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4038 3395 127 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/AARNET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12309 11735 UNINET, MX 9808 11823 11707 CHINAMOBILE-CN China Mobile Communications Grou 12479 7605 7457 UNI2-AS, ES 7545 6159 5537 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4484 4459 FPT-AS-AP FPT Telecom Company, VN 11492 4813 4202 CABLEONE, US 9498 4445 4134 BBIL-AP BHARTI Airtel Ltd., IN 20940 4038 3911 AKAMAI-ASN1, NL 7552 3918 3891 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 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 /11:92 /12:298 /13:582 /14:1210 /15:2151 /16:13783 /17:8226 /18:13503 /19:24543 /20:43975 /21:51728 /22:111808 /23:102889 /24:614613 /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 12479 6547 7605 UNI2-AS, ES 8151 6527 12309 UNINET, MX 11492 3606 4813 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3421 3624 SHAW, CA 7155 2814 3855 VIASAT-SP-BACKBONE, US 22773 2494 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2352 13696 AMAZON-02, US 30036 2270 2611 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2200 3513 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) ---------------------------------------------- 1:2405 2:1525 3:854 4:10 5:4761 6:162 7:6 8:1552 9:1 11:172 12:1335 13:460 14:2558 15:365 16:286 17:379 18:896 20:558 21:4 22:188 23:7735 24:2725 25:2 27:2820 29:19 31:3339 32:35 33:1 34:80 35:260 36:3630 37:4566 38:9411 39:911 40:253 41:4203 42:1977 43:2675 44:373 45:18572 46:5107 47:336 49:1869 50:1945 51:591 52:1553 54:327 55:1112 56:11 57:274 58:2176 59:1277 60:1183 61:2790 62:2966 63:1800 64:5531 65:2161 66:4718 67:3103 68:1085 69:3889 70:1043 71:631 72:2851 74:2793 75:1507 76:602 77:2758 78:1920 79:1694 80:2200 81:2052 82:3181 83:1439 84:1887 85:3467 86:1087 87:2136 88:1348 89:4422 90:778 91:8413 92:2710 93:2953 94:4065 95:4421 96:1467 97:310 98:954 99:695 100:71 101:1182 102:3879 103:32239 104:5212 105:792 106:970 107:2639 108:1181 109:4178 110:2231 111:3310 112:2236 113:1841 114:1955 115:2254 116:2062 117:2582 118:2987 119:1890 120:2144 121:1332 122:2792 123:2241 124:1643 125:2877 126:89 128:1610 129:967 130:1311 131:2051 132:776 133:450 134:1645 135:350 136:1452 137:1318 138:2815 139:1585 140:1636 141:1505 142:1908 143:1991 144:1179 145:562 146:2170 147:2102 148:2711 149:2936 150:1257 151:2221 152:2076 153:591 154:7549 155:1847 156:3075 157:1952 158:1347 159:2513 160:3627 161:1901 162:3858 163:2258 164:1844 165:2358 166:1518 167:2021 168:3984 169:786 170:5126 171:1006 172:4252 173:3388 174:918 175:1324 176:3723 177:4698 178:3931 179:2308 180:2602 181:4131 182:3512 183:2152 184:2082 185:21611 186:5220 187:4660 188:4274 189:4325 190:9562 191:1492 192:11351 193:9482 194:7771 195:5585 196:3301 197:3197 198:6225 199:8592 200:8217 201:6386 202:10382 203:10669 204:4680 205:3645 206:4526 207:3638 208:4281 209:5183 210:4624 211:2590 212:4556 213:3834 214:1021 215:46 216:6730 217:3219 218:1365 219:393 220:2143 221:1193 222:743 223:2674 End of report