IPv4 R&E Routing Table Report 21:10 GMT Tue 09 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: 999044 Prefixes after maximum aggregation (per Origin AS): 387865 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 493221 Number of IPv4 prefixes with a valid ROA: 568649 Number of IPv4 prefixes with an invalid ROA: 171 Number of IPv4 prefixes with no ROA: 430224 Total ASes present in the Internet Routing Table: 77259 Prefixes per ASN: 12.93 Origin-only ASes present in the Internet Routing Table: 66160 Origin ASes announcing only one prefix: 27026 Transit ASes present in the Internet Routing Table: 11099 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: 92 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1046 Number of instances of unregistered ASNs: 1075 Number of 32-bit ASNs allocated by the RIRs: 47358 Number of 32-bit ASNs visible in the Routing Table: 38915 Prefixes from 32-bit ASNs in the Routing Table: 209320 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: 3107129600 Equivalent to 185 /8s, 51 /16s and 9 /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: 325633 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 265653 Total APNIC prefixes after maximum aggregation: 78969 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 255964 Unique aggregates announced from the APNIC address blocks: 105488 APNIC Region origin ASes present in the Internet Routing Table: 14786 APNIC Prefixes per ASN: 17.31 APNIC Region origin ASes announcing only one prefix: 4506 APNIC Region transit ASes present in the Internet Routing Table: 1974 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10338 Number of APNIC addresses announced to Internet: 750186496 Equivalent to 44 /8s, 182 /16s and 240 /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: 293806 Total ARIN prefixes after maximum aggregation: 133513 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 295122 Unique aggregates announced from the ARIN address blocks: 142540 ARIN Region origin ASes present in the Internet Routing Table: 19302 ARIN Prefixes per ASN: 15.29 ARIN Region origin ASes announcing only one prefix: 7064 ARIN Region transit ASes present in the Internet Routing Table: 1992 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: 5324 Number of ARIN addresses announced to Internet: 1349283840 Equivalent to 80 /8s, 108 /16s and 112 /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: 278717 Total RIPE prefixes after maximum aggregation: 137704 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 277852 Unique aggregates announced from the RIPE address blocks: 179575 RIPE Region origin ASes present in the Internet Routing Table: 29032 RIPE Prefixes per ASN: 9.57 RIPE Region origin ASes announcing only one prefix: 12089 RIPE Region transit ASes present in the Internet Routing Table: 4007 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: 12682 Number of RIPE addresses announced to Internet: 731886848 Equivalent to 43 /8s, 159 /16s and 181 /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: 124774 Total LACNIC prefixes after maximum aggregation: 30196 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120986 Unique aggregates announced from the LACNIC address blocks: 49427 LACNIC Region origin ASes present in the Internet Routing Table: 11279 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2651 LACNIC Region transit ASes present in the Internet Routing Table: 2536 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 92 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9247 Number of LACNIC addresses announced to Internet: 170742016 Equivalent to 10 /8s, 45 /16s and 81 /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: 35048 Total AfriNIC prefixes after maximum aggregation: 6787 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 48664 Unique aggregates announced from the AfriNIC address blocks: 15794 AfriNIC Region origin ASes present in the Internet Routing Table: 1963 AfriNIC Prefixes per ASN: 24.79 AfriNIC Region origin ASes announcing only one prefix: 716 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1324 Number of AfriNIC addresses announced to Internet: 104784128 Equivalent to 6 /8s, 62 /16s and 225 /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 12992 8729 114 CHINAMOBILE-CN China Mobile Communication 7545 6140 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4442 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3934 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3611 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3293 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2990 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2915 862 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2167 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 14356 40863 5384 AMAZON-02, US 11492 4732 314 822 CABLEONE, US 22773 3960 3064 318 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3660 1320 82 SHAW, CA 174 3288 8767 846 COGENT-174, US 396982 3225 3859 443 GOOGLE-CLOUD-PLATFORM, US 749 3219 54766 2470 DNIC-AS-00749, US 16625 3042 1294 2203 AKAMAI-AS, US 4155 2988 233 1751 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 7492 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4033 3395 127 AKAMAI-ASN1, NL 9009 3876 365 2189 M247, RO 12389 3118 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2415 172 1748 CDNEXT, GB 34984 2411 361 585 TELLCOM-AS, TR 203020 1882 225 868 HOSTROYALE, IN 8452 1613 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 12356 3279 576 UNINET, MX 10620 3489 473 1043 Telmex Colombia S.A., CO 13999 2538 511 347 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1374 2435 257 Claro NXT Telecomunicacoes Ltda, BR 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1215 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1176 371 22 Telefonica del Peru S.A.A., PE 22884 1061 70 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 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 1823 652 28 RAYA-AS, EG 36992 1477 1497 375 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 29571 1247 102 38 ORANGE-COTE-IVOIRE, CI 24863 1246 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 1065 522 45 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 566 82 3 KENET-AS, KE 15399 562 58 61 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 14356 40863 5384 AMAZON-02, US 9808 12992 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 12356 3279 576 UNINET, MX 12479 7492 1711 149 UNI2-AS, ES 7545 6140 838 618 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4732 314 822 CABLEONE, US 9498 4466 535 310 BBIL-AP BHARTI Airtel Ltd., IN 18403 4442 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4033 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 12992 12878 CHINAMOBILE-CN China Mobile Communications Grou 8151 12356 11780 UNINET, MX 12479 7492 7343 UNI2-AS, ES 7545 6140 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4442 4417 FPT-AS-AP FPT Telecom Company, VN 9498 4466 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4732 3910 CABLEONE, US 7552 3934 3907 VIETEL-AS-AP Viettel Group, VN 20940 4033 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 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 23.145.44.0/24 Origin: 8143 NEBUSRT, US 23.145.44.0/24 Transit: 49304 SAKURA-AS, HK 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 /16:13759 /17:8210 /18:13457 /19:24584 /20:44258 /21:51965 /22:112437 /23:103508 /24:622466 /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 6555 12356 UNINET, MX 12479 6449 7492 UNI2-AS, ES 11492 3548 4732 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3457 3660 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2505 3960 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2430 14356 AMAZON-02, US 30036 2302 2644 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2207 3489 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) ---------------------------------------------- 1:2419 2:1548 3:935 4:10 5:4810 6:156 7:6 8:1540 9:4 11:172 12:1251 13:561 14:2601 15:397 16:302 17:389 18:904 20:569 21:4 22:188 23:7858 24:2707 25:2 27:2819 29:19 31:3362 32:30 33:1 34:81 35:266 36:4292 37:4536 38:9334 39:1009 40:262 41:4334 42:1946 43:2686 44:381 45:18915 46:5137 47:343 49:1998 50:2052 51:591 52:1610 54:369 55:1111 56:11 57:284 58:2243 59:1281 60:1183 61:2878 62:3048 63:1762 64:5623 65:2136 66:4852 67:3107 68:1071 69:3911 70:1032 71:635 72:2859 74:2820 75:1507 76:600 77:2778 78:1917 79:1757 80:2232 81:2091 82:3306 83:1457 84:1957 85:3493 86:1099 87:2128 88:1353 89:4486 90:803 91:8407 92:2773 93:2979 94:4159 95:4447 96:1467 97:310 98:947 99:749 100:71 101:1218 102:4079 103:32275 104:5273 105:784 106:877 107:2646 108:1219 109:4201 110:2223 111:3602 112:2500 113:1831 114:1985 115:2239 116:2070 117:2736 118:3066 119:1923 120:2181 121:1334 122:2795 123:2252 124:1668 125:2865 126:91 128:1599 129:965 130:1301 131:2167 132:789 133:460 134:1606 135:366 136:1488 137:1327 138:2822 139:1595 140:1627 141:1531 142:1910 143:2024 144:1218 145:607 146:2186 147:2116 148:2719 149:2924 150:1246 151:2376 152:2121 153:629 154:7433 155:2003 156:3490 157:1953 158:1422 159:2560 160:3611 161:1944 162:3906 163:2301 164:1916 165:2577 166:1555 167:2072 168:3840 169:781 170:5356 171:1002 172:4249 173:3400 174:902 175:1341 176:3795 177:4755 178:4088 179:2289 180:2589 181:4187 182:3662 183:2265 184:2069 185:21642 186:5334 187:4678 188:4280 189:4355 190:9674 191:1528 192:11386 193:9454 194:7793 195:5540 196:3306 197:3236 198:6233 199:8658 200:8252 201:6349 202:10435 203:10661 204:4569 205:3666 206:4546 207:3662 208:4264 209:5214 210:4741 211:2660 212:4664 213:3851 214:1038 215:51 216:6870 217:3305 218:1458 219:394 220:2153 221:1215 222:750 223:2810 End of report