IPv4 R&E Routing Table Report 21:10 GMT Thu 07 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: 993718 Prefixes after maximum aggregation (per Origin AS): 384821 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 488923 Number of IPv4 prefixes with a valid ROA: 558272 Number of IPv4 prefixes with an invalid ROA: 182 Number of IPv4 prefixes with no ROA: 435264 Total ASes present in the Internet Routing Table: 77130 Prefixes per ASN: 12.88 Origin-only ASes present in the Internet Routing Table: 66029 Origin ASes announcing only one prefix: 26973 Transit ASes present in the Internet Routing Table: 11101 Transit-only ASes present in the Internet Routing Table: 559 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 37447) 47 Prefixes from unregistered ASNs in the Routing Table: 1078 Number of instances of unregistered ASNs: 1122 Number of 32-bit ASNs allocated by the RIRs: 47076 Number of 32-bit ASNs visible in the Routing Table: 38741 Prefixes from 32-bit ASNs in the Routing Table: 206603 Number of bogon 32-bit ASNs visible in the Routing Table: 100 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 433 Number of addresses announced to Internet: 3107514112 Equivalent to 185 /8s, 56 /16s and 231 /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: 323918 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 263870 Total APNIC prefixes after maximum aggregation: 78280 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 254839 Unique aggregates announced from the APNIC address blocks: 104958 APNIC Region origin ASes present in the Internet Routing Table: 14743 APNIC Prefixes per ASN: 17.29 APNIC Region origin ASes announcing only one prefix: 4495 APNIC Region transit ASes present in the Internet Routing Table: 1983 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: 10279 Number of APNIC addresses announced to Internet: 749570560 Equivalent to 44 /8s, 173 /16s and 138 /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: 292611 Total ARIN prefixes after maximum aggregation: 132564 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 294106 Unique aggregates announced from the ARIN address blocks: 141914 ARIN Region origin ASes present in the Internet Routing Table: 19266 ARIN Prefixes per ASN: 15.27 ARIN Region origin ASes announcing only one prefix: 7048 ARIN Region transit ASes present in the Internet Routing Table: 1998 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5281 Number of ARIN addresses announced to Internet: 1349377024 Equivalent to 80 /8s, 109 /16s and 220 /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: 277045 Total RIPE prefixes after maximum aggregation: 136589 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 276060 Unique aggregates announced from the RIPE address blocks: 178523 RIPE Region origin ASes present in the Internet Routing Table: 28986 RIPE Prefixes per ASN: 9.52 RIPE Region origin ASes announcing only one prefix: 12061 RIPE Region transit ASes present in the Internet Routing Table: 3988 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12626 Number of RIPE addresses announced to Internet: 731996672 Equivalent to 43 /8s, 161 /16s and 98 /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: 124444 Total LACNIC prefixes after maximum aggregation: 29887 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120807 Unique aggregates announced from the LACNIC address blocks: 49124 LACNIC Region origin ASes present in the Internet Routing Table: 11276 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2658 LACNIC Region transit ASes present in the Internet Routing Table: 2558 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9242 Number of LACNIC addresses announced to Internet: 171142144 Equivalent to 10 /8s, 51 /16s and 108 /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: 34670 Total AfriNIC prefixes after maximum aggregation: 6795 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 47472 Unique aggregates announced from the AfriNIC address blocks: 14026 AfriNIC Region origin ASes present in the Internet Routing Table: 1950 AfriNIC Prefixes per ASN: 24.34 AfriNIC Region origin ASes announcing only one prefix: 711 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 50 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1313 Number of AfriNIC addresses announced to Internet: 105185536 Equivalent to 6 /8s, 69 /16s and 1 /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 12609 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6139 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4585 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3942 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3286 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2965 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2917 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2173 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 13775 41061 5307 AMAZON-02, US 11492 4830 320 609 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 82 SHAW, CA 174 3614 8770 854 COGENT-174, US 22773 3342 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3204 3858 436 GOOGLE-CLOUD-PLATFORM, US 16625 3052 1291 2217 AKAMAI-AS, US 4155 2910 227 1732 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 7568 1711 153 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4039 3395 127 AKAMAI-ASN1, NL 9009 3853 365 2170 M247, RO 12389 3111 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 584 TELLCOM-AS, TR 212238 2312 163 1681 CDNEXT, GB 13188 1605 100 37 TRIOLAN, UA 8452 1580 1852 14 TE-AS TE-AS, EG 203020 1519 190 667 HOSTROYALE, IN 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 12326 3272 578 UNINET, MX 10620 3475 472 1052 Telmex Colombia S.A., CO 13999 2528 511 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1372 2435 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 11664 1140 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1068 71 373 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 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 1484 94 32 ORANGE-COTE-IVOIRE, CI 36992 1417 1494 373 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1237 389 20 LINKdotNET-AS, EG 37069 1086 1112 11 MOBINIL, EG 36935 972 520 43 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 566 82 3 KENET-AS, KE 15399 542 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 13775 41061 5307 AMAZON-02, US 9808 12609 8762 116 CHINAMOBILE-CN China Mobile Communication 8151 12326 3272 578 UNINET, MX 12479 7568 1711 153 UNI2-AS, ES 7545 6139 837 624 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4830 320 609 CABLEONE, US 39891 4798 293 63 ALJAWWALSTC-AS, SA 18403 4585 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4463 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4039 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 12609 12493 CHINAMOBILE-CN China Mobile Communications Grou 8151 12326 11748 UNINET, MX 12479 7568 7415 UNI2-AS, ES 7545 6139 5515 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4585 4560 FPT-AS-AP FPT Telecom Company, VN 11492 4830 4221 CABLEONE, US 9498 4463 4152 BBIL-AP BHARTI Airtel Ltd., IN 7552 3942 3915 VIETEL-AS-AP Viettel Group, VN 20940 4039 3912 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 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 /13:581 /14:1209 /15:2153 /16:13802 /17:8230 /18:13504 /19:24575 /20:43953 /21:51830 /22:112141 /23:103108 /24:618170 /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 6544 12326 UNINET, MX 12479 6529 7568 UNI2-AS, ES 11492 3622 4830 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3432 3635 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2494 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2346 13775 AMAZON-02, US 30036 2296 2638 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2195 3475 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) ---------------------------------------------- 1:2423 2:1523 3:871 4:10 5:4756 6:156 7:6 8:1542 9:2 11:172 12:1336 13:471 14:2580 15:369 16:286 17:377 18:898 20:562 21:4 22:188 23:7798 24:2724 25:2 27:2802 29:19 31:3367 32:35 33:1 34:80 35:263 36:4205 37:4575 38:9506 39:965 40:250 41:4282 42:2062 43:2691 44:383 45:18598 46:5095 47:338 49:1877 50:2047 51:588 52:1553 54:324 55:1106 56:11 57:273 58:2184 59:1287 60:1185 61:2881 62:3012 63:1782 64:5568 65:2146 66:4763 67:3106 68:1068 69:3912 70:1034 71:633 72:2854 74:2819 75:1509 76:606 77:2785 78:1919 79:1711 80:2207 81:2060 82:3226 83:1437 84:1925 85:3470 86:1095 87:2146 88:1347 89:4420 90:772 91:8404 92:2750 93:2959 94:4080 95:4434 96:1470 97:310 98:955 99:702 100:71 101:1214 102:3904 103:32278 104:5282 105:764 106:875 107:2653 108:1263 109:4190 110:2231 111:3512 112:2416 113:1848 114:1974 115:2229 116:2068 117:2682 118:2974 119:1895 120:2197 121:1339 122:2796 123:2248 124:1657 125:2880 126:91 128:1616 129:970 130:1312 131:2067 132:793 133:450 134:1600 135:353 136:1467 137:1322 138:2821 139:1600 140:1623 141:1533 142:1927 143:1957 144:1183 145:568 146:2181 147:2104 148:2719 149:2949 150:1280 151:2301 152:2096 153:591 154:7570 155:1866 156:3066 157:1937 158:1372 159:2528 160:3611 161:1907 162:3883 163:2265 164:1879 165:2457 166:1531 167:2020 168:3872 169:784 170:5189 171:999 172:4242 173:3417 174:919 175:1323 176:3736 177:4743 178:3979 179:2312 180:2589 181:4148 182:3584 183:2240 184:2081 185:21617 186:5246 187:4657 188:4272 189:4361 190:9505 191:1511 192:11374 193:9479 194:7780 195:5595 196:3270 197:3171 198:6239 199:8613 200:8221 201:6401 202:10394 203:10669 204:4614 205:3681 206:4527 207:3646 208:4295 209:5194 210:4708 211:2643 212:4584 213:3828 214:1029 215:50 216:6804 217:3253 218:1420 219:397 220:2145 221:1208 222:742 223:2779 End of report