IPv4 R&E Routing Table Report 21:10 GMT Thu 04 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: 997259 Prefixes after maximum aggregation (per Origin AS): 387446 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 492164 Number of IPv4 prefixes with a valid ROA: 567387 Number of IPv4 prefixes with an invalid ROA: 167 Number of IPv4 prefixes with no ROA: 429689 Total ASes present in the Internet Routing Table: 77248 Prefixes per ASN: 12.91 Origin-only ASes present in the Internet Routing Table: 66162 Origin ASes announcing only one prefix: 27021 Transit ASes present in the Internet Routing Table: 11086 Transit-only ASes present in the Internet Routing Table: 554 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 (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1037 Number of instances of unregistered ASNs: 1066 Number of 32-bit ASNs allocated by the RIRs: 47315 Number of 32-bit ASNs visible in the Routing Table: 38890 Prefixes from 32-bit ASNs in the Routing Table: 209003 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: 455 Number of addresses announced to Internet: 3107395072 Equivalent to 185 /8s, 55 /16s and 22 /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: 325168 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265296 Total APNIC prefixes after maximum aggregation: 78847 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255812 Unique aggregates announced from the APNIC address blocks: 105209 APNIC Region origin ASes present in the Internet Routing Table: 14785 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4518 APNIC Region transit ASes present in the Internet Routing Table: 1976 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: 10331 Number of APNIC addresses announced to Internet: 750095616 Equivalent to 44 /8s, 181 /16s and 141 /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: 292991 Total ARIN prefixes after maximum aggregation: 133301 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295053 Unique aggregates announced from the ARIN address blocks: 142426 ARIN Region origin ASes present in the Internet Routing Table: 19299 ARIN Prefixes per ASN: 15.29 ARIN Region origin ASes announcing only one prefix: 7059 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: 41 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5318 Number of ARIN addresses announced to Internet: 1349561088 Equivalent to 80 /8s, 112 /16s and 171 /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: 278505 Total RIPE prefixes after maximum aggregation: 137622 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 277714 Unique aggregates announced from the RIPE address blocks: 179444 RIPE Region origin ASes present in the Internet Routing Table: 29031 RIPE Prefixes per ASN: 9.57 RIPE Region origin ASes announcing only one prefix: 12081 RIPE Region transit ASes present in the Internet Routing Table: 3998 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: 12674 Number of RIPE addresses announced to Internet: 732026880 Equivalent to 43 /8s, 161 /16s and 216 /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: 124307 Total LACNIC prefixes after maximum aggregation: 30182 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 120521 Unique aggregates announced from the LACNIC address blocks: 49371 LACNIC Region origin ASes present in the Internet Routing Table: 11276 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2650 LACNIC Region transit ASes present in the Internet Routing Table: 2542 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: 9244 Number of LACNIC addresses announced to Internet: 170760192 Equivalent to 10 /8s, 45 /16s and 152 /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: 35123 Total AfriNIC prefixes after maximum aggregation: 6801 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 47703 Unique aggregates announced from the AfriNIC address blocks: 15319 AfriNIC Region origin ASes present in the Internet Routing Table: 1962 AfriNIC Prefixes per ASN: 24.31 AfriNIC Region origin ASes announcing only one prefix: 713 AfriNIC Region transit ASes present in the Internet Routing Table: 383 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: 1323 Number of AfriNIC addresses announced to Internet: 104705024 Equivalent to 6 /8s, 61 /16s and 172 /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 12913 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 4381 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3936 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3655 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3291 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2975 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2916 864 505 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2170 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 14248 40858 5406 AMAZON-02, US 11492 4732 314 822 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3659 1320 82 SHAW, CA 22773 3355 3034 180 ASN-CXA-ALL-CCI-22773-RDC, US 396982 3224 3859 441 GOOGLE-CLOUD-PLATFORM, US 749 3221 54766 2472 DNIC-AS-00749, US 174 3138 8759 839 COGENT-174, US 16625 3052 1299 2213 AKAMAI-AS, US 4155 2964 231 1745 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 7497 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4030 3395 127 AKAMAI-ASN1, NL 9009 3857 364 2186 M247, RO 12389 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2406 361 586 TELLCOM-AS, TR 212238 2389 170 1734 CDNEXT, GB 203020 1874 225 863 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1605 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 12328 3275 573 UNINET, MX 10620 3486 472 1048 Telmex Colombia S.A., CO 13999 2530 511 347 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1370 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1216 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1178 371 22 Telefonica del Peru S.A.A., PE 22884 1061 70 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 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 1824 652 28 RAYA-AS, EG 36992 1425 1495 377 ETISALAT-MISR, EG 29571 1371 102 38 ORANGE-COTE-IVOIRE, CI 36903 1250 554 97 MT-MPLS, MA 24863 1245 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 1048 521 43 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 572 82 3 KENET-AS, KE 15399 546 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 14248 40858 5406 AMAZON-02, US 9808 12913 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12328 3275 573 UNINET, MX 12479 7497 1711 150 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4732 314 822 CABLEONE, US 9498 4467 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4381 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4030 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 12913 12799 CHINAMOBILE-CN China Mobile Communications Grou 8151 12328 11755 UNINET, MX 12479 7497 7347 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4381 4356 FPT-AS-AP FPT Telecom Company, VN 9498 4467 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4732 3910 CABLEONE, US 7552 3936 3909 VIETEL-AS-AP Viettel Group, VN 20940 4030 3903 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 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 1782 UNALLOCATED 8.42.19.0/24 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 /15:2150 /16:13767 /17:8203 /18:13451 /19:24593 /20:44268 /21:51960 /22:112414 /23:103373 /24:620829 /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 6531 12328 UNINET, MX 12479 6446 7497 UNI2-AS, ES 11492 3548 4732 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3456 3659 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2505 3355 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2405 14248 AMAZON-02, US 30036 2325 2668 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2206 3486 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) ---------------------------------------------- 1:2417 2:1538 3:926 4:10 5:4824 6:156 7:6 8:1541 9:4 11:172 12:1254 13:553 14:2611 15:397 16:302 17:386 18:903 20:568 21:4 22:188 23:7861 24:2709 25:2 27:2818 29:19 31:3354 32:29 33:1 34:81 35:262 36:4294 37:4526 38:9303 39:996 40:261 41:4312 42:1940 43:2688 44:383 45:18725 46:5139 47:342 49:1987 50:2056 51:591 52:1604 54:364 55:1105 56:11 57:285 58:2240 59:1283 60:1181 61:2865 62:3044 63:1780 64:5612 65:2138 66:4836 67:3107 68:1070 69:3915 70:1031 71:633 72:2859 74:2819 75:1508 76:601 77:2780 78:1918 79:1757 80:2227 81:2092 82:3295 83:1455 84:1950 85:3495 86:1098 87:2129 88:1354 89:4488 90:803 91:8422 92:2770 93:2973 94:4162 95:4447 96:1470 97:310 98:950 99:730 100:71 101:1219 102:4049 103:32287 104:5289 105:770 106:876 107:2654 108:1229 109:4202 110:2226 111:3581 112:2468 113:1826 114:1979 115:2224 116:2068 117:2698 118:3033 119:1922 120:2203 121:1339 122:2792 123:2250 124:1664 125:2880 126:91 128:1595 129:967 130:1303 131:2159 132:784 133:459 134:1618 135:366 136:1488 137:1312 138:2818 139:1596 140:1623 141:1545 142:1910 143:2021 144:1219 145:607 146:2184 147:2112 148:2717 149:2910 150:1254 151:2360 152:2115 153:629 154:7174 155:1963 156:3113 157:1958 158:1405 159:2556 160:3596 161:1941 162:3914 163:2299 164:1910 165:2560 166:1552 167:2072 168:3828 169:783 170:5254 171:1000 172:4262 173:3409 174:902 175:1333 176:3791 177:4738 178:4030 179:2304 180:2586 181:4187 182:3663 183:2243 184:2067 185:21645 186:5356 187:4644 188:4305 189:4336 190:9469 191:1518 192:11398 193:9484 194:7796 195:5559 196:3296 197:3236 198:6233 199:8647 200:8194 201:6356 202:10436 203:10672 204:4583 205:3689 206:4543 207:3658 208:4261 209:5214 210:4741 211:2653 212:4658 213:3845 214:1044 215:51 216:6855 217:3298 218:1481 219:392 220:2153 221:1210 222:748 223:2813 End of report