IPv4 R&E Routing Table Report 21:10 GMT Sun 24 Aug, 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: 996211 Prefixes after maximum aggregation (per Origin AS): 386814 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 491771 Number of IPv4 prefixes with a valid ROA: 565427 Number of IPv4 prefixes with an invalid ROA: 151 Number of IPv4 prefixes with no ROA: 430633 Total ASes present in the Internet Routing Table: 77228 Prefixes per ASN: 12.90 Origin-only ASes present in the Internet Routing Table: 66119 Origin ASes announcing only one prefix: 27027 Transit ASes present in the Internet Routing Table: 11109 Transit-only ASes present in the Internet Routing Table: 557 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1034 Number of instances of unregistered ASNs: 1075 Number of 32-bit ASNs allocated by the RIRs: 47270 Number of 32-bit ASNs visible in the Routing Table: 38855 Prefixes from 32-bit ASNs in the Routing Table: 208175 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 422 Number of addresses announced to Internet: 3106616576 Equivalent to 185 /8s, 43 /16s and 53 /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: 324750 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265165 Total APNIC prefixes after maximum aggregation: 78808 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255658 Unique aggregates announced from the APNIC address blocks: 105123 APNIC Region origin ASes present in the Internet Routing Table: 14775 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4513 APNIC Region transit ASes present in the Internet Routing Table: 1993 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10312 Number of APNIC addresses announced to Internet: 749802752 Equivalent to 44 /8s, 177 /16s and 21 /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: 292470 Total ARIN prefixes after maximum aggregation: 133181 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 294311 Unique aggregates announced from the ARIN address blocks: 142178 ARIN Region origin ASes present in the Internet Routing Table: 19291 ARIN Prefixes per ASN: 15.26 ARIN Region origin ASes announcing only one prefix: 7066 ARIN Region transit ASes present in the Internet Routing Table: 1987 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: 5305 Number of ARIN addresses announced to Internet: 1348948224 Equivalent to 80 /8s, 103 /16s and 81 /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: 278165 Total RIPE prefixes after maximum aggregation: 137205 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277389 Unique aggregates announced from the RIPE address blocks: 179183 RIPE Region origin ASes present in the Internet Routing Table: 29033 RIPE Prefixes per ASN: 9.55 RIPE Region origin ASes announcing only one prefix: 12086 RIPE Region transit ASes present in the Internet Routing Table: 3986 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12673 Number of RIPE addresses announced to Internet: 732388352 Equivalent to 43 /8s, 167 /16s and 92 /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: 124549 Total LACNIC prefixes after maximum aggregation: 30148 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120818 Unique aggregates announced from the LACNIC address blocks: 49411 LACNIC Region origin ASes present in the Internet Routing Table: 11281 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2646 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: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9249 Number of LACNIC addresses announced to Internet: 170788608 Equivalent to 10 /8s, 46 /16s and 7 /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: 34828 Total AfriNIC prefixes after maximum aggregation: 6786 AfriNIC Deaggregation factor: 5.13 Prefixes being announced from the AfriNIC address blocks: 47612 Unique aggregates announced from the AfriNIC address blocks: 15509 AfriNIC Region origin ASes present in the Internet Routing Table: 1953 AfriNIC Prefixes per ASN: 24.38 AfriNIC Region origin ASes announcing only one prefix: 716 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1316 Number of AfriNIC addresses announced to Internet: 104450048 Equivalent to 6 /8s, 57 /16s and 200 /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 12928 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4423 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3940 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3657 1043 70 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3292 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2970 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2173 427 184 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 13985 40851 5389 AMAZON-02, US 11492 4742 314 779 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3648 1320 82 SHAW, CA 22773 3333 3026 158 ASN-CXA-ALL-CCI-22773-RDC, US 174 3284 8759 847 COGENT-174, US 749 3221 54766 2472 DNIC-AS-00749, US 396982 3217 3857 435 GOOGLE-CLOUD-PLATFORM, US 16625 3040 1292 2209 AKAMAI-AS, US 4155 2944 229 1743 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 7539 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4027 3395 127 AKAMAI-ASN1, NL 9009 3865 366 2185 M247, RO 12389 3112 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2405 361 586 TELLCOM-AS, TR 212238 2333 166 1701 CDNEXT, GB 203020 1807 220 834 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1601 1852 14 TE-AS TE-AS, EG 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 12278 3270 570 UNINET, MX 10620 3482 472 1053 Telmex Colombia S.A., CO 13999 2529 511 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2432 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1220 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 22 Telefonica del Peru S.A.A., PE 22884 1059 70 381 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1018 2487 55 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 1770 660 28 RAYA-AS, EG 29571 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1041 1096 13 MOBINIL, EG 36935 990 522 45 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 15399 543 57 59 WANANCHI-, KE 36914 532 82 3 KENET-AS, 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 13985 40851 5389 AMAZON-02, US 9808 12928 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12278 3270 570 UNINET, MX 12479 7539 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4742 314 779 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4423 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4027 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 9808 12928 12813 CHINAMOBILE-CN China Mobile Communications Grou 8151 12278 11708 UNINET, MX 12479 7539 7389 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4423 4398 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4742 3963 CABLEONE, US 7552 3940 3913 VIETEL-AS-AP Viettel Group, VN 20940 4027 3900 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 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 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, 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 /11:92 /12:298 /13:580 /14:1208 /15:2150 /16:13774 /17:8214 /18:13488 /19:24603 /20:44013 /21:51932 /22:112314 /23:103309 /24:620164 /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 6500 7539 UNI2-AS, ES 8151 6487 12278 UNINET, MX 11492 3555 4742 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3445 3648 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2493 3333 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2382 13985 AMAZON-02, US 30036 2315 2658 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2202 3482 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) ---------------------------------------------- 1:2414 2:1538 3:921 4:10 5:4810 6:158 7:6 8:1543 9:3 11:172 12:1257 13:481 14:2591 15:386 16:285 17:380 18:900 20:564 21:4 22:188 23:7858 24:2704 25:2 27:2832 29:19 31:3372 32:29 33:1 34:81 35:259 36:4292 37:4563 38:9236 39:991 40:261 41:4242 42:1964 43:2682 44:383 45:18770 46:5123 47:337 49:1974 50:2063 51:591 52:1557 54:335 55:1107 56:11 57:287 58:2243 59:1277 60:1179 61:2864 62:3022 63:1782 64:5607 65:2140 66:4817 67:3105 68:1065 69:3911 70:1031 71:638 72:2854 74:2815 75:1509 76:602 77:2778 78:1915 79:1737 80:2232 81:2091 82:3267 83:1448 84:1922 85:3480 86:1124 87:2145 88:1355 89:4473 90:776 91:8416 92:2759 93:2972 94:4133 95:4458 96:1465 97:311 98:954 99:711 100:71 101:1219 102:3917 103:32320 104:5287 105:770 106:875 107:2650 108:1265 109:4192 110:2239 111:3582 112:2475 113:1867 114:1975 115:2231 116:2064 117:2699 118:3025 119:1913 120:2207 121:1334 122:2805 123:2238 124:1660 125:2884 126:91 128:1614 129:962 130:1307 131:2079 132:774 133:460 134:1622 135:357 136:1483 137:1309 138:2836 139:1599 140:1616 141:1541 142:1915 143:1991 144:1200 145:587 146:2182 147:2107 148:2717 149:3017 150:1250 151:2374 152:2114 153:624 154:7388 155:1922 156:3171 157:1959 158:1388 159:2541 160:3613 161:1922 162:3899 163:2292 164:1884 165:2499 166:1550 167:2067 168:3879 169:768 170:5241 171:997 172:4260 173:3416 174:904 175:1322 176:3785 177:4809 178:3985 179:2352 180:2591 181:4175 182:3611 183:2245 184:2075 185:21636 186:5323 187:4653 188:4305 189:4370 190:9422 191:1530 192:11374 193:9478 194:7798 195:5643 196:3301 197:3192 198:6240 199:8613 200:8215 201:6357 202:10412 203:10669 204:4603 205:3676 206:4518 207:3645 208:4295 209:5182 210:4726 211:2650 212:4622 213:3838 214:1039 215:51 216:6817 217:3309 218:1438 219:397 220:2141 221:1210 222:742 223:2812 End of report