IPv4 R&E Routing Table Report 21:10 GMT Mon 29 Sep, 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: 1004171 Prefixes after maximum aggregation (per Origin AS): 389209 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495192 Number of IPv4 prefixes with a valid ROA: 573981 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 430045 Total ASes present in the Internet Routing Table: 77298 Prefixes per ASN: 12.99 Origin-only ASes present in the Internet Routing Table: 66191 Origin ASes announcing only one prefix: 27063 Transit ASes present in the Internet Routing Table: 11107 Transit-only ASes present in the Internet Routing Table: 558 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 974 Number of instances of unregistered ASNs: 1004 Number of 32-bit ASNs allocated by the RIRs: 47585 Number of 32-bit ASNs visible in the Routing Table: 38996 Prefixes from 32-bit ASNs in the Routing Table: 210882 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 428 Number of addresses announced to Internet: 3111713536 Equivalent to 185 /8s, 120 /16s and 251 /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: 327417 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268071 Total APNIC prefixes after maximum aggregation: 79372 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 258009 Unique aggregates announced from the APNIC address blocks: 105377 APNIC Region origin ASes present in the Internet Routing Table: 14755 APNIC Prefixes per ASN: 17.49 APNIC Region origin ASes announcing only one prefix: 4493 APNIC Region transit ASes present in the Internet Routing Table: 1973 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: 10318 Number of APNIC addresses announced to Internet: 750958848 Equivalent to 44 /8s, 194 /16s and 185 /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: 295130 Total ARIN prefixes after maximum aggregation: 133775 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 296428 Unique aggregates announced from the ARIN address blocks: 143023 ARIN Region origin ASes present in the Internet Routing Table: 19324 ARIN Prefixes per ASN: 15.34 ARIN Region origin ASes announcing only one prefix: 7091 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: 49 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5347 Number of ARIN addresses announced to Internet: 1352826112 Equivalent to 80 /8s, 162 /16s and 125 /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: 279804 Total RIPE prefixes after maximum aggregation: 138249 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279381 Unique aggregates announced from the RIPE address blocks: 180475 RIPE Region origin ASes present in the Internet Routing Table: 29073 RIPE Prefixes per ASN: 9.61 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: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12744 Number of RIPE addresses announced to Internet: 732963072 Equivalent to 43 /8s, 176 /16s and 33 /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: 125112 Total LACNIC prefixes after maximum aggregation: 30301 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121343 Unique aggregates announced from the LACNIC address blocks: 49462 LACNIC Region origin ASes present in the Internet Routing Table: 11285 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2665 LACNIC Region transit ASes present in the Internet Routing Table: 2529 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9255 Number of LACNIC addresses announced to Internet: 170719488 Equivalent to 10 /8s, 44 /16s and 249 /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: 35080 Total AfriNIC prefixes after maximum aggregation: 6849 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 48581 Unique aggregates announced from the AfriNIC address blocks: 16477 AfriNIC Region origin ASes present in the Internet Routing Table: 1970 AfriNIC Prefixes per ASN: 24.66 AfriNIC Region origin ASes announcing only one prefix: 720 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: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1332 Number of AfriNIC addresses announced to Internet: 104012288 Equivalent to 6 /8s, 51 /16s and 26 /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 13673 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6163 835 604 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4490 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3951 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3715 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2923 862 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2326 501 1483 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 14276 40896 5383 AMAZON-02, US 11492 4746 320 804 CABLEONE, US 22773 3952 3061 316 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3677 1320 82 SHAW, CA 174 3286 8770 814 COGENT-174, US 396982 3270 4824 460 GOOGLE-CLOUD-PLATFORM, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3073 238 1706 USDA-1, US 16625 3047 1303 2216 AKAMAI-AS, 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 7446 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4032 3395 126 AKAMAI-ASN1, NL 9009 3913 367 2198 M247, RO 12389 3123 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2443 173 1767 CDNEXT, GB 34984 2413 363 574 TELLCOM-AS, TR 203020 1850 199 873 HOSTROYALE, IN 8452 1622 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 12370 3278 576 UNINET, MX 10620 3505 474 1048 Telmex Colombia S.A., CO 13999 2542 511 346 Mega Cable, S.A. de C.V., MX 11830 1985 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 11664 1173 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1063 71 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 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 1847 652 28 RAYA-AS, EG 36992 1510 1498 384 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1247 389 20 LINKdotNET-AS, EG 29571 1185 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1059 520 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 15399 548 57 59 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 14276 40896 5383 AMAZON-02, US 9808 13673 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12370 3278 576 UNINET, MX 12479 7446 1711 149 UNI2-AS, ES 7545 6163 835 604 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4746 320 804 CABLEONE, US 18403 4490 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4032 3395 126 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 9808 13673 13557 CHINAMOBILE-CN China Mobile Communications Grou 8151 12370 11794 UNINET, MX 12479 7446 7297 UNI2-AS, ES 7545 6163 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4490 4465 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4159 BBIL-AP BHARTI Airtel Ltd., IN 11492 4746 3942 CABLEONE, US 7552 3951 3923 VIETEL-AS-AP Viettel Group, VN 20940 4032 3906 AKAMAI-ASN1, NL 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS 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 23.147.240.0/24 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 /12:301 /13:583 /14:1208 /15:2145 /16:13779 /17:8217 /18:13466 /19:24638 /20:44330 /21:51989 /22:112650 /23:103990 /24:626710 /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 6585 12370 UNINET, MX 12479 6419 7446 UNI2-AS, ES 11492 3560 4746 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3466 3677 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2514 3952 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2411 14276 AMAZON-02, US 30036 2282 2622 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2223 3505 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) ---------------------------------------------- 1:2424 2:1563 3:941 4:10 5:4846 6:170 7:6 8:1536 9:6 11:172 12:1244 13:540 14:2632 15:402 16:303 17:389 18:904 20:573 21:4 22:188 23:7886 24:2699 25:2 27:2805 29:19 31:3347 32:31 33:1 34:81 35:267 36:4439 37:4542 38:9505 39:1090 40:292 41:4351 42:1994 43:2725 44:388 45:18863 46:5148 47:342 49:2018 50:2046 51:594 52:1603 54:359 55:1085 56:11 57:286 58:2227 59:1295 60:1188 61:2905 62:3088 63:1763 64:5635 65:2134 66:4929 67:3105 68:1102 69:3944 70:1036 71:629 72:2913 74:2831 75:1498 76:600 77:2770 78:1918 79:1759 80:2236 81:2117 82:3445 83:1467 84:1981 85:3520 86:1097 87:2134 88:1359 89:4500 90:814 91:8400 92:2782 93:2990 94:4166 95:4484 96:1494 97:312 98:952 99:755 100:71 101:1218 102:4154 103:32158 104:5360 105:778 106:895 107:2656 108:1210 109:4207 110:2244 111:3771 112:2650 113:1850 114:1990 115:2320 116:2067 117:2939 118:3055 119:1920 120:2273 121:1346 122:2821 123:2262 124:1660 125:2853 126:91 128:1605 129:965 130:1291 131:2138 132:786 133:461 134:1610 135:365 136:1493 137:1304 138:2817 139:1610 140:1643 141:1552 142:1917 143:2050 144:1270 145:627 146:2181 147:2122 148:2735 149:2844 150:1269 151:2547 152:2144 153:643 154:7475 155:2055 156:3490 157:1994 158:1414 159:2588 160:3572 161:1991 162:3931 163:2294 164:1926 165:2579 166:1561 167:2098 168:3828 169:780 170:5375 171:1010 172:4268 173:3402 174:905 175:1321 176:3803 177:4765 178:4236 179:2279 180:2580 181:4244 182:3726 183:2533 184:2072 185:21665 186:5393 187:4677 188:4276 189:4386 190:9684 191:1558 192:11415 193:9489 194:7787 195:5581 196:3280 197:3244 198:6257 199:8732 200:8222 201:6353 202:10459 203:10632 204:4588 205:3671 206:4556 207:3700 208:4268 209:5349 210:4763 211:2683 212:4789 213:3885 214:1038 215:52 216:6937 217:3345 218:1566 219:394 220:2188 221:1236 222:752 223:3011 End of report