IPv4 R&E Routing Table Report 21:10 GMT Tue 26 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: 995400 Prefixes after maximum aggregation (per Origin AS): 386759 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 491659 Number of IPv4 prefixes with a valid ROA: 565134 Number of IPv4 prefixes with an invalid ROA: 154 Number of IPv4 prefixes with no ROA: 430112 Total ASes present in the Internet Routing Table: 77214 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66110 Origin ASes announcing only one prefix: 27010 Transit ASes present in the Internet Routing Table: 11104 Transit-only ASes present in the Internet Routing Table: 555 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: 1044 Number of instances of unregistered ASNs: 1085 Number of 32-bit ASNs allocated by the RIRs: 47271 Number of 32-bit ASNs visible in the Routing Table: 38854 Prefixes from 32-bit ASNs in the Routing Table: 208436 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: 427 Number of addresses announced to Internet: 3106762496 Equivalent to 185 /8s, 45 /16s and 111 /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: 324590 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264666 Total APNIC prefixes after maximum aggregation: 78740 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255366 Unique aggregates announced from the APNIC address blocks: 105098 APNIC Region origin ASes present in the Internet Routing Table: 14766 APNIC Prefixes per ASN: 17.29 APNIC Region origin ASes announcing only one prefix: 4503 APNIC Region transit ASes present in the Internet Routing Table: 1985 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: 10308 Number of APNIC addresses announced to Internet: 750001152 Equivalent to 44 /8s, 180 /16s and 28 /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: 292112 Total ARIN prefixes after maximum aggregation: 133078 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 294086 Unique aggregates announced from the ARIN address blocks: 142200 ARIN Region origin ASes present in the Internet Routing Table: 19287 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7065 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: 5307 Number of ARIN addresses announced to Internet: 1349050112 Equivalent to 80 /8s, 104 /16s and 223 /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: 278153 Total RIPE prefixes after maximum aggregation: 137254 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277462 Unique aggregates announced from the RIPE address blocks: 179257 RIPE Region origin ASes present in the Internet Routing Table: 29028 RIPE Prefixes per ASN: 9.56 RIPE Region origin ASes announcing only one prefix: 12080 RIPE Region transit ASes present in the Internet Routing Table: 3996 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: 732253440 Equivalent to 43 /8s, 165 /16s and 77 /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: 124522 Total LACNIC prefixes after maximum aggregation: 30210 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 120750 Unique aggregates announced from the LACNIC address blocks: 49446 LACNIC Region origin ASes present in the Internet Routing Table: 11282 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2648 LACNIC Region transit ASes present in the Internet Routing Table: 2555 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: 170745856 Equivalent to 10 /8s, 45 /16s and 96 /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: 34903 Total AfriNIC prefixes after maximum aggregation: 6783 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 47308 Unique aggregates announced from the AfriNIC address blocks: 15286 AfriNIC Region origin ASes present in the Internet Routing Table: 1955 AfriNIC Prefixes per ASN: 24.20 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1317 Number of AfriNIC addresses announced to Internet: 104472064 Equivalent to 6 /8s, 58 /16s and 30 /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 12918 8729 114 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 4392 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3941 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3668 1044 68 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 2912 864 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2172 427 183 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 14048 40854 5385 AMAZON-02, US 11492 4752 315 781 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3651 1320 82 SHAW, CA 22773 3354 3034 179 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 396982 3220 3858 438 GOOGLE-CLOUD-PLATFORM, US 174 3158 8759 846 COGENT-174, US 16625 3040 1292 2209 AKAMAI-AS, US 4155 2948 230 1747 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 7518 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4028 3395 127 AKAMAI-ASN1, NL 9009 3830 363 2179 M247, RO 12389 3076 2308 864 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2405 361 586 TELLCOM-AS, TR 212238 2339 166 1706 CDNEXT, GB 203020 1825 220 836 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1602 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 12289 3272 572 UNINET, MX 10620 3483 472 1054 Telmex Colombia S.A., CO 13999 2530 511 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1370 2434 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1222 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1181 371 22 Telefonica del Peru S.A.A., PE 22884 1061 70 380 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1010 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 972 520 42 Vodafone-, EG 36914 578 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 15399 544 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 14048 40854 5385 AMAZON-02, US 9808 12918 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12289 3272 572 UNINET, MX 12479 7518 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4752 315 781 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4392 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4028 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 12918 12804 CHINAMOBILE-CN China Mobile Communications Grou 8151 12289 11717 UNINET, MX 12479 7518 7368 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4392 4367 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4752 3971 CABLEONE, US 7552 3941 3914 VIETEL-AS-AP Viettel Group, VN 20940 4028 3901 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 /14:1209 /15:2149 /16:13768 /17:8204 /18:13473 /19:24603 /20:44008 /21:51910 /22:112332 /23:103219 /24:619483 /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 6496 12289 UNINET, MX 12479 6479 7518 UNI2-AS, ES 11492 3565 4752 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3448 3651 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2505 3354 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2407 14048 AMAZON-02, US 30036 2317 2660 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2203 3483 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) ---------------------------------------------- 1:2411 2:1537 3:924 4:10 5:4814 6:156 7:6 8:1540 9:4 11:172 12:1257 13:482 14:2603 15:387 16:285 17:380 18:903 20:564 21:4 22:188 23:7876 24:2679 25:2 27:2818 29:19 31:3366 32:29 33:1 34:81 35:259 36:4291 37:4552 38:9251 39:991 40:262 41:4274 42:1956 43:2686 44:383 45:18717 46:5125 47:342 49:1977 50:2061 51:591 52:1568 54:341 55:1113 56:11 57:286 58:2244 59:1280 60:1080 61:2831 62:3028 63:1784 64:5601 65:2142 66:4818 67:3107 68:1066 69:3898 70:1030 71:636 72:2855 74:2807 75:1507 76:601 77:2773 78:1914 79:1722 80:2233 81:2091 82:3274 83:1444 84:1922 85:3485 86:1127 87:2143 88:1355 89:4463 90:775 91:8420 92:2759 93:2978 94:4137 95:4452 96:1463 97:310 98:954 99:728 100:71 101:1216 102:3950 103:32317 104:5289 105:762 106:874 107:2651 108:1238 109:4189 110:2239 111:3584 112:2475 113:1832 114:1978 115:2228 116:2063 117:2703 118:3018 119:1922 120:2208 121:1335 122:2810 123:2234 124:1646 125:2884 126:91 128:1597 129:966 130:1303 131:2075 132:781 133:460 134:1625 135:358 136:1483 137:1314 138:2837 139:1601 140:1616 141:1541 142:1908 143:2001 144:1200 145:585 146:2184 147:2104 148:2716 149:2812 150:1250 151:2401 152:2114 153:624 154:7173 155:1945 156:3075 157:1956 158:1385 159:2542 160:3607 161:1958 162:3907 163:2293 164:1885 165:2509 166:1544 167:2070 168:3868 169:784 170:5268 171:997 172:4259 173:3400 174:902 175:1296 176:3786 177:4797 178:3992 179:2315 180:2595 181:4185 182:3618 183:2243 184:2073 185:21642 186:5325 187:4624 188:4304 189:4333 190:9420 191:1539 192:11372 193:9478 194:7807 195:5650 196:3302 197:3206 198:6236 199:8640 200:8217 201:6368 202:10425 203:10657 204:4590 205:3667 206:4507 207:3652 208:4287 209:5210 210:4685 211:2648 212:4628 213:3837 214:1042 215:51 216:6822 217:3299 218:1440 219:397 220:2143 221:1210 222:748 223:2813 End of report