IPv4 R&E Routing Table Report 21:10 GMT Thu 21 May, 2026 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: 1048119 Prefixes after maximum aggregation (per Origin AS): 402204 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 517770 Number of IPv4 prefixes with a valid ROA: 655932 Number of IPv4 prefixes with an invalid ROA: 102 Number of IPv4 prefixes with no ROA: 392085 Total ASes present in the Internet Routing Table: 78491 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 67195 Origin ASes announcing only one prefix: 27430 Transit ASes present in the Internet Routing Table: 11296 Transit-only ASes present in the Internet Routing Table: 587 Paths with bogon ASNs present in the IPv4 Routing Table: 8 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1122 Number of instances of unregistered ASNs: 1152 Number of 32-bit ASNs allocated by the RIRs: 49849 Number of 32-bit ASNs visible in the Routing Table: 40661 Prefixes from 32-bit ASNs in the Routing Table: 230633 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 433 Number of addresses announced to Internet: 3104110080 Equivalent to 185 /8s, 4 /16s and 246 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 342824 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284648 Total APNIC prefixes after maximum aggregation: 83117 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 271083 Unique aggregates announced from the APNIC address blocks: 108037 APNIC Region origin ASes present in the Internet Routing Table: 15204 APNIC Prefixes per ASN: 17.83 APNIC Region origin ASes announcing only one prefix: 4647 APNIC Region transit ASes present in the Internet Routing Table: 2053 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10789 Number of APNIC addresses announced to Internet: 747706880 Equivalent to 44 /8s, 145 /16s and 26 /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: 304329 Total ARIN prefixes after maximum aggregation: 137024 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 303069 Unique aggregates announced from the ARIN address blocks: 147803 ARIN Region origin ASes present in the Internet Routing Table: 19428 ARIN Prefixes per ASN: 15.60 ARIN Region origin ASes announcing only one prefix: 7105 ARIN Region transit ASes present in the Internet Routing Table: 1973 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: 5581 Number of ARIN addresses announced to Internet: 1348121600 Equivalent to 80 /8s, 90 /16s and 180 /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, 393216-404380 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: 290544 Total RIPE prefixes after maximum aggregation: 143482 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 294097 Unique aggregates announced from the RIPE address blocks: 191818 RIPE Region origin ASes present in the Internet Routing Table: 29502 RIPE Prefixes per ASN: 9.97 RIPE Region origin ASes announcing only one prefix: 12227 RIPE Region transit ASes present in the Internet Routing Table: 4082 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13448 Number of RIPE addresses announced to Internet: 734011136 Equivalent to 43 /8s, 192 /16s and 31 /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: 130020 Total LACNIC prefixes after maximum aggregation: 30866 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 124428 Unique aggregates announced from the LACNIC address blocks: 50351 LACNIC Region origin ASes present in the Internet Routing Table: 11407 LACNIC Prefixes per ASN: 10.91 LACNIC Region origin ASes announcing only one prefix: 2718 LACNIC Region transit ASes present in the Internet Routing Table: 2602 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9448 Number of LACNIC addresses announced to Internet: 169725184 Equivalent to 10 /8s, 29 /16s and 205 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 37456 Total AfriNIC prefixes after maximum aggregation: 7071 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 55008 Unique aggregates announced from the AfriNIC address blocks: 19387 AfriNIC Region origin ASes present in the Internet Routing Table: 2029 AfriNIC Prefixes per ASN: 27.11 AfriNIC Region origin ASes announcing only one prefix: 733 AfriNIC Region transit ASes present in the Internet Routing Table: 393 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1395 Number of AfriNIC addresses announced to Internet: 104348672 Equivalent to 6 /8s, 56 /16s and 60 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13909 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5877 825 477 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4937 551 328 BBIL-AP BHARTI Airtel Ltd., IN 18403 4531 347 24 FPT-AP FPT Telecom Company, VN 7552 4064 1331 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3539 886 176 CMNET-JIANGSU-AP China Mobile communicati 17561 3472 218 605 LCS-AS-AP LARUS Limited, HK 45899 3371 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2738 745 734 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 15054 41427 5716 AMAZON-02 - Amazon.com, Inc., US 22773 4759 3114 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4591 305 1089 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3717 1305 75 SHAW - Shaw Communications, CA 396982 3353 4865 506 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2928 223 937 AS-COLOCROSSING - HostPapa, US 7029 2634 2558 886 WINDSTREAM - Windstream Communications LL 30036 2579 357 532 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7136 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3944 363 2352 M247, RO 20940 3914 3389 110 AKAMAI-ASN1, NL 12389 3141 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2798 206 2065 CDNEXT, GB 34984 2490 367 584 TELLCOM-AS, TR 8452 1718 1852 14 TE-AS TE-AS, EG 203020 1653 252 829 HOSTROYALE, IN 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 12749 3254 631 UNINET, MX 10620 3432 450 1101 Telmex Colombia S.A., CO 13999 2356 501 358 Mega Cable, S.A. de C.V., MX 11830 1936 369 65 Instituto Costarricense de Electricidad y 11664 1470 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1364 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1223 371 22 INTEGRATEL PERU S.A.A., PE 22884 1076 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1075 2392 100 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 2028 649 36 RAYA-AS, EG 36992 1858 1532 337 ETISALAT-MISR, EG 36935 1275 521 43 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 24863 1219 389 16 LINKdotNET-AS, EG 37069 1116 1100 11 MOBINIL, EG 29571 1086 70 18 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 328608 636 57 172 Africa-on-Cloud-AS, ZA 36914 560 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 15054 41427 5716 AMAZON-02 - Amazon.com, Inc., US 9808 13909 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12749 3254 631 UNINET, MX 12479 7136 1711 149 UNI2-AS, ES 7545 5877 825 477 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4937 551 328 BBIL-AP BHARTI Airtel Ltd., IN 22773 4759 3114 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4591 305 1089 CABLEONE - CABLE ONE, INC., US 18403 4531 347 24 FPT-AP FPT Telecom Company, VN 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 13909 13788 CHINAMOBILE-CN China Mobile Communications Grou 8151 12749 12118 UNINET, MX 12479 7136 6987 UNI2-AS, ES 7545 5877 5400 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4937 4609 BBIL-AP BHARTI Airtel Ltd., IN 18403 4531 4507 FPT-AP FPT Telecom Company, VN 22773 4759 4397 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4064 4038 VIETEL-AS-AP Viettel Group, VN 20940 3914 3804 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 400273 UNALLOCATED 8.41.137.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /10:39 /11:95 /12:297 /13:583 /14:1191 /15:2118 /16:13600 /17:8291 /18:13361 /19:25482 /20:45796 /21:52417 /22:113444 /23:108540 /24:662834 /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 6970 12749 UNINET, MX 12479 6072 7136 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3717 SHAW - Shaw Communications, CA 11492 3468 4591 CABLEONE - CABLE ONE, INC., US 22773 3064 4759 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2721 15054 AMAZON-02 - Amazon.com, Inc., US 10620 2236 3432 Telmex Colombia S.A., CO 30036 2234 2579 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2491 2:2076 3:1001 4:5 5:5097 6:203 7:6 8:1474 9:59 11:172 12:1141 13:726 14:2718 15:467 16:215 17:441 18:920 20:609 21:4 22:188 23:8378 24:2774 25:2 27:2823 28:1 29:19 31:3599 32:36 34:87 35:284 36:4780 37:4434 38:9767 39:1303 40:412 41:4566 42:2179 43:3169 44:455 45:19782 46:4896 47:414 48:151 49:2252 50:2011 51:803 52:1332 54:289 55:1107 56:11 57:325 58:2345 59:1371 60:1175 61:3171 62:3136 63:1682 64:6374 65:2150 66:6133 67:3272 68:1512 69:4222 70:1057 71:617 72:3180 74:3071 75:1500 76:598 77:2943 78:2041 79:1793 80:2343 81:2265 82:4167 83:1458 84:2165 85:3839 86:1093 87:2585 88:1318 89:4769 90:794 91:8467 92:2789 93:3029 94:4412 95:4698 96:1446 97:308 98:949 99:849 100:70 101:1463 102:4622 103:32488 104:5370 105:844 106:919 107:2947 108:1277 109:4273 110:2281 111:4122 112:3162 113:2010 114:2534 115:2338 116:2070 117:3591 118:3034 119:2086 120:2739 121:1561 122:3020 123:2295 124:1657 125:2985 126:158 128:1602 129:975 130:1686 131:2440 132:881 133:486 134:1721 135:615 136:1457 137:1564 138:3417 139:1706 140:1842 141:1770 142:2554 143:2041 144:1786 145:633 146:2189 147:2253 148:2795 149:3163 150:1378 151:2920 152:2354 153:1706 154:9603 155:2279 156:5162 157:2443 158:1577 159:2870 160:3857 161:1987 162:4099 163:2587 164:2427 165:2678 166:1267 167:2336 168:4059 169:870 170:5624 171:1136 172:4808 173:3453 174:884 175:1355 176:3939 177:5046 178:4411 179:2384 180:3071 181:4595 182:4045 183:2843 184:2020 185:21866 186:6210 187:5064 188:4506 189:4530 190:9887 191:2006 192:11539 193:9618 194:7864 195:5837 196:3431 197:3245 198:6292 199:6068 200:8290 201:6405 202:10703 203:10685 204:4801 205:3745 206:4439 207:3998 208:4369 209:5505 210:4775 211:2691 212:5081 213:4125 214:1042 215:47 216:7310 217:3618 218:1801 219:413 220:2223 221:1321 222:938 223:3441 End of report