IPv4 R&E Routing Table Report 21:10 GMT Sun 12 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: 1008526 Prefixes after maximum aggregation (per Origin AS): 391179 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 496562 Number of IPv4 prefixes with a valid ROA: 577946 Number of IPv4 prefixes with an invalid ROA: 144 Number of IPv4 prefixes with no ROA: 430436 Total ASes present in the Internet Routing Table: 77414 Prefixes per ASN: 13.03 Origin-only ASes present in the Internet Routing Table: 66310 Origin ASes announcing only one prefix: 27091 Transit ASes present in the Internet Routing Table: 11104 Transit-only ASes present in the Internet Routing Table: 559 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: 997 Number of instances of unregistered ASNs: 1026 Number of 32-bit ASNs allocated by the RIRs: 47693 Number of 32-bit ASNs visible in the Routing Table: 39119 Prefixes from 32-bit ASNs in the Routing Table: 212678 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: 451 Number of addresses announced to Internet: 3111176192 Equivalent to 185 /8s, 112 /16s and 200 /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: 328466 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 269421 Total APNIC prefixes after maximum aggregation: 79992 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 259200 Unique aggregates announced from the APNIC address blocks: 105837 APNIC Region origin ASes present in the Internet Routing Table: 14821 APNIC Prefixes per ASN: 17.49 APNIC Region origin ASes announcing only one prefix: 4519 APNIC Region transit ASes present in the Internet Routing Table: 1980 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: 10378 Number of APNIC addresses announced to Internet: 751498496 Equivalent to 44 /8s, 202 /16s and 245 /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: 297445 Total ARIN prefixes after maximum aggregation: 134448 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 298391 Unique aggregates announced from the ARIN address blocks: 143981 ARIN Region origin ASes present in the Internet Routing Table: 19345 ARIN Prefixes per ASN: 15.42 ARIN Region origin ASes announcing only one prefix: 7100 ARIN Region transit ASes present in the Internet Routing Table: 1985 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: 5361 Number of ARIN addresses announced to Internet: 1352289792 Equivalent to 80 /8s, 154 /16s and 78 /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: 280714 Total RIPE prefixes after maximum aggregation: 138859 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280343 Unique aggregates announced from the RIPE address blocks: 181100 RIPE Region origin ASes present in the Internet Routing Table: 29085 RIPE Prefixes per ASN: 9.64 RIPE Region origin ASes announcing only one prefix: 12093 RIPE Region transit ASes present in the Internet Routing Table: 4015 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: 12767 Number of RIPE addresses announced to Internet: 732461056 Equivalent to 43 /8s, 168 /16s and 120 /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: 125028 Total LACNIC prefixes after maximum aggregation: 30342 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121167 Unique aggregates announced from the LACNIC address blocks: 49405 LACNIC Region origin ASes present in the Internet Routing Table: 11303 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2546 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: 9280 Number of LACNIC addresses announced to Internet: 170698496 Equivalent to 10 /8s, 44 /16s and 167 /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: 34921 Total AfriNIC prefixes after maximum aggregation: 6866 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 48973 Unique aggregates announced from the AfriNIC address blocks: 15843 AfriNIC Region origin ASes present in the Internet Routing Table: 1970 AfriNIC Prefixes per ASN: 24.86 AfriNIC Region origin ASes announcing only one prefix: 717 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: 1333 Number of AfriNIC addresses announced to Internet: 103987456 Equivalent to 6 /8s, 50 /16s and 185 /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 13731 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6185 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4476 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4443 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3948 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3687 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3299 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 3136 827 180 CMNET-JIANGSU-AP China Mobile communicati 24560 2927 863 499 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 9304 2467 512 1596 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 14294 40989 5356 AMAZON-02, US 11492 4756 321 791 CABLEONE, US 22773 4111 3074 366 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3683 1320 82 SHAW, CA 396982 3273 4824 465 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3108 241 1740 USDA-1, US 174 3083 8767 802 COGENT-174, US 16625 3038 1300 2211 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 7401 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 20940 4043 3395 126 AKAMAI-ASN1, NL 9009 3954 372 2237 M247, RO 12389 3110 2310 844 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2513 180 1826 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 2037 223 1002 HOSTROYALE, IN 8452 1637 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 12367 3282 573 UNINET, MX 10620 3477 468 1087 Telmex Colombia S.A., CO 13999 2528 511 345 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1373 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1239 278 32 Techtel LMDS Comunicaciones Interactivas 6147 1167 371 22 Telefonica del Peru S.A.A., PE 22884 1066 71 365 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 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 1767 594 28 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 1010 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 558 82 3 KENET-AS, KE 15399 543 56 55 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 14294 40989 5356 AMAZON-02, US 9808 13731 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12367 3282 573 UNINET, MX 12479 7401 1711 149 UNI2-AS, ES 7545 6185 835 605 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4756 321 791 CABLEONE, US 9498 4476 536 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4443 347 24 FPT-AS-AP FPT Telecom Company, VN 22773 4111 3074 366 ASN-CXA-ALL-CCI-22773-RDC, US 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 13731 13614 CHINAMOBILE-CN China Mobile Communications Grou 8151 12367 11794 UNINET, MX 12479 7401 7252 UNI2-AS, ES 7545 6185 5580 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4443 4419 FPT-AS-AP FPT Telecom Company, VN 9498 4476 4164 BBIL-AP BHARTI Airtel Ltd., IN 11492 4756 3965 CABLEONE, US 7552 3948 3920 VIETEL-AS-AP Viettel Group, VN 20940 4043 3917 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 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, 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 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, 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 /12:301 /13:583 /14:1203 /15:2127 /16:13779 /17:8215 /18:13480 /19:24701 /20:44305 /21:51974 /22:112690 /23:104387 /24:630616 /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 6589 12367 UNINET, MX 12479 6366 7401 UNI2-AS, ES 11492 3569 4756 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3683 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2588 4111 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2392 14294 AMAZON-02, US 30036 2300 2640 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3477 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) ---------------------------------------------- 1:2426 2:1563 3:940 4:10 5:4846 6:170 7:6 8:1531 9:6 11:172 12:1240 13:561 14:2651 15:401 16:304 17:388 18:908 20:575 21:4 22:188 23:7980 24:2702 25:2 27:2811 29:19 31:3355 32:31 33:1 34:81 35:268 36:4449 37:4549 38:9487 39:1098 40:469 41:4290 42:1989 43:2738 44:398 45:19128 46:5189 47:365 49:2082 50:2056 51:596 52:1592 54:359 55:1181 56:11 57:285 58:2292 59:1309 60:1189 61:2917 62:3091 63:1769 64:5670 65:2127 66:5074 67:3124 68:1211 69:4019 70:1036 71:634 72:2978 74:2839 75:1504 76:598 77:2767 78:1917 79:1757 80:2246 81:2133 82:3469 83:1475 84:1993 85:3534 86:1101 87:2147 88:1358 89:4510 90:809 91:8390 92:2809 93:2982 94:4149 95:4520 96:1493 97:312 98:948 99:755 100:71 101:1221 102:4158 103:32262 104:5453 105:787 106:895 107:2728 108:1209 109:4225 110:2248 111:3767 112:2660 113:1848 114:2070 115:2339 116:2072 117:3024 118:3040 119:1979 120:2287 121:1487 122:2810 123:2266 124:1657 125:2883 126:125 128:1606 129:964 130:1395 131:2171 132:790 133:462 134:1623 135:364 136:1490 137:1320 138:2830 139:1604 140:1642 141:1541 142:2146 143:2081 144:1275 145:628 146:2185 147:2135 148:2742 149:2912 150:1273 151:2600 152:2178 153:642 154:7859 155:2100 156:3301 157:1990 158:1435 159:2607 160:3632 161:1994 162:3956 163:2299 164:1954 165:2547 166:1564 167:2110 168:3834 169:783 170:5381 171:1057 172:4475 173:3413 174:906 175:1344 176:3809 177:4755 178:4292 179:2257 180:2708 181:4242 182:3748 183:2532 184:2075 185:21678 186:5371 187:4703 188:4380 189:4407 190:9656 191:1546 192:11405 193:9474 194:7798 195:5578 196:3295 197:3237 198:6237 199:8788 200:8199 201:6340 202:10472 203:10617 204:4610 205:3691 206:4444 207:3728 208:4266 209:5375 210:4746 211:2684 212:4830 213:3902 214:1028 215:52 216:6960 217:3363 218:1576 219:394 220:2191 221:1250 222:753 223:3057 End of report