IPv4 R&E Routing Table Report 21:10 GMT Tue 07 Oct, 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: 1005609 Prefixes after maximum aggregation (per Origin AS): 389987 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 495854 Number of IPv4 prefixes with a valid ROA: 575661 Number of IPv4 prefixes with an invalid ROA: 147 Number of IPv4 prefixes with no ROA: 429800 Total ASes present in the Internet Routing Table: 77372 Prefixes per ASN: 13.00 Origin-only ASes present in the Internet Routing Table: 66247 Origin ASes announcing only one prefix: 27074 Transit ASes present in the Internet Routing Table: 11125 Transit-only ASes present in the Internet Routing Table: 564 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 ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 961 Number of instances of unregistered ASNs: 990 Number of 32-bit ASNs allocated by the RIRs: 47654 Number of 32-bit ASNs visible in the Routing Table: 39079 Prefixes from 32-bit ASNs in the Routing Table: 211483 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: 439 Number of addresses announced to Internet: 3110827264 Equivalent to 185 /8s, 107 /16s and 117 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 327878 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 268692 Total APNIC prefixes after maximum aggregation: 79704 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 258521 Unique aggregates announced from the APNIC address blocks: 105812 APNIC Region origin ASes present in the Internet Routing Table: 14814 APNIC Prefixes per ASN: 17.45 APNIC Region origin ASes announcing only one prefix: 4518 APNIC Region transit ASes present in the Internet Routing Table: 1981 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10368 Number of APNIC addresses announced to Internet: 750984960 Equivalent to 44 /8s, 195 /16s and 31 /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: 295647 Total ARIN prefixes after maximum aggregation: 133983 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 296986 Unique aggregates announced from the ARIN address blocks: 143017 ARIN Region origin ASes present in the Internet Routing Table: 19336 ARIN Prefixes per ASN: 15.36 ARIN Region origin ASes announcing only one prefix: 7091 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: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5352 Number of ARIN addresses announced to Internet: 1352330240 Equivalent to 80 /8s, 154 /16s and 236 /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: 280223 Total RIPE prefixes after maximum aggregation: 138466 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 279722 Unique aggregates announced from the RIPE address blocks: 180713 RIPE Region origin ASes present in the Internet Routing Table: 29059 RIPE Prefixes per ASN: 9.63 RIPE Region origin ASes announcing only one prefix: 12085 RIPE Region transit ASes present in the Internet Routing Table: 4027 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12749 Number of RIPE addresses announced to Internet: 732610560 Equivalent to 43 /8s, 170 /16s and 192 /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: 125090 Total LACNIC prefixes after maximum aggregation: 30316 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121290 Unique aggregates announced from the LACNIC address blocks: 49494 LACNIC Region origin ASes present in the Internet Routing Table: 11300 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2543 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9276 Number of LACNIC addresses announced to Internet: 170798336 Equivalent to 10 /8s, 46 /16s and 45 /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: 34996 Total AfriNIC prefixes after maximum aggregation: 6863 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 48650 Unique aggregates announced from the AfriNIC address blocks: 16429 AfriNIC Region origin ASes present in the Internet Routing Table: 1971 AfriNIC Prefixes per ASN: 24.68 AfriNIC Region origin ASes announcing only one prefix: 719 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 43 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1334 Number of AfriNIC addresses announced to Internet: 103865088 Equivalent to 6 /8s, 48 /16s and 219 /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 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4556 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3725 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3297 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3116 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2920 861 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2424 509 1566 HUTCHISON-AS-AP HGC Global Communications 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 14321 40993 5394 AMAZON-02, US 11492 4752 320 794 CABLEONE, US 22773 4018 3067 363 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3681 1320 82 SHAW, CA 396982 3268 4823 463 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3095 240 1715 USDA-1, US 174 3064 8767 803 COGENT-174, US 16625 3044 1302 2213 AKAMAI-AS, 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 7414 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4046 3395 126 AKAMAI-ASN1, NL 9009 3949 371 2235 M247, RO 12389 3125 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2476 176 1794 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1904 203 906 HOSTROYALE, IN 8452 1653 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 12373 3281 577 UNINET, MX 10620 3505 474 1060 Telmex Colombia S.A., CO 13999 2543 511 346 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1227 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 23 Telefonica del Peru S.A.A., PE 22884 1070 71 349 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1008 2486 56 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 1766 600 27 RAYA-AS, EG 36992 1508 1498 383 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 24863 1249 389 20 LINKdotNET-AS, EG 29571 1188 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 958 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 15399 548 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 14321 40993 5394 AMAZON-02, US 9808 13670 8730 116 CHINAMOBILE-CN China Mobile Communication 8151 12373 3281 577 UNINET, MX 12479 7414 1711 149 UNI2-AS, ES 7545 6184 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4752 320 794 CABLEONE, US 18403 4556 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 20940 4046 3395 126 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 13670 13554 CHINAMOBILE-CN China Mobile Communications Grou 8151 12373 11796 UNINET, MX 12479 7414 7265 UNI2-AS, ES 7545 6184 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4556 4531 FPT-AS-AP FPT Telecom Company, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 11492 4752 3958 CABLEONE, US 20940 4046 3920 AKAMAI-ASN1, NL 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN 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 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 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 /11:93 /12:300 /13:583 /14:1203 /15:2128 /16:13788 /17:8211 /18:13490 /19:24660 /20:44359 /21:51946 /22:112640 /23:104079 /24:628057 /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 6598 12373 UNINET, MX 12479 6382 7414 UNI2-AS, ES 11492 3565 4752 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3470 3681 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2528 4018 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2395 14321 AMAZON-02, US 30036 2294 2634 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2218 3505 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) ---------------------------------------------- 1:2427 2:1558 3:945 4:10 5:4832 6:169 7:6 8:1529 9:6 11:172 12:1242 13:565 14:2642 15:402 16:304 17:386 18:905 20:574 21:4 22:188 23:7935 24:2698 25:2 27:2805 29:19 31:3354 32:31 33:1 34:81 35:267 36:4443 37:4544 38:9517 39:1089 40:290 41:4362 42:2039 43:2722 44:398 45:18964 46:5207 47:342 49:2026 50:2053 51:594 52:1593 54:359 55:1094 56:11 57:284 58:2271 59:1305 60:1188 61:2919 62:3090 63:1766 64:5666 65:2134 66:4998 67:3127 68:1101 69:3956 70:1044 71:640 72:2981 74:2841 75:1495 76:599 77:2774 78:1917 79:1753 80:2250 81:2121 82:3460 83:1467 84:1980 85:3513 86:1094 87:2132 88:1355 89:4493 90:805 91:8363 92:2779 93:2988 94:4161 95:4500 96:1494 97:312 98:952 99:738 100:71 101:1222 102:4167 103:32275 104:5362 105:786 106:895 107:2664 108:1209 109:4224 110:2247 111:3762 112:2651 113:1855 114:1991 115:2340 116:2076 117:2939 118:3056 119:1978 120:2265 121:1359 122:2810 123:2266 124:1657 125:2883 126:125 128:1605 129:964 130:1301 131:2153 132:789 133:462 134:1612 135:365 136:1490 137:1316 138:2827 139:1610 140:1622 141:1538 142:2038 143:2057 144:1266 145:627 146:2185 147:2131 148:2747 149:2917 150:1272 151:2569 152:2173 153:640 154:7485 155:2060 156:3505 157:1999 158:1434 159:2600 160:3580 161:1993 162:3955 163:2226 164:1942 165:2552 166:1562 167:2098 168:3827 169:781 170:5365 171:1025 172:4258 173:3405 174:909 175:1348 176:3811 177:4802 178:4275 179:2283 180:2619 181:4233 182:3726 183:2537 184:2070 185:21647 186:5370 187:4722 188:4320 189:4391 190:9701 191:1536 192:11412 193:9473 194:7798 195:5576 196:3275 197:3231 198:6235 199:8756 200:8229 201:6344 202:10466 203:10602 204:4598 205:3690 206:4446 207:3714 208:4281 209:5365 210:4769 211:2684 212:4803 213:3892 214:1042 215:52 216:6938 217:3354 218:1567 219:394 220:2190 221:1236 222:752 223:3018 End of report