IPv4 R&E Routing Table Report 21:10 GMT Tue 19 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: 995010 Prefixes after maximum aggregation (per Origin AS): 385931 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 489550 Number of IPv4 prefixes with a valid ROA: 563393 Number of IPv4 prefixes with an invalid ROA: 147 Number of IPv4 prefixes with no ROA: 431470 Total ASes present in the Internet Routing Table: 77179 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66083 Origin ASes announcing only one prefix: 26993 Transit ASes present in the Internet Routing Table: 11096 Transit-only ASes present in the Internet Routing Table: 556 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 52 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 1046 Number of instances of unregistered ASNs: 1087 Number of 32-bit ASNs allocated by the RIRs: 47206 Number of 32-bit ASNs visible in the Routing Table: 38805 Prefixes from 32-bit ASNs in the Routing Table: 207759 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 430 Number of addresses announced to Internet: 3107028992 Equivalent to 185 /8s, 49 /16s and 128 /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: 324391 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 264594 Total APNIC prefixes after maximum aggregation: 78438 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 255509 Unique aggregates announced from the APNIC address blocks: 105061 APNIC Region origin ASes present in the Internet Routing Table: 14768 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4522 APNIC Region transit ASes present in the Internet Routing Table: 1994 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10304 Number of APNIC addresses announced to Internet: 749604864 Equivalent to 44 /8s, 174 /16s and 16 /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: 292084 Total ARIN prefixes after maximum aggregation: 132770 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 293823 Unique aggregates announced from the ARIN address blocks: 142015 ARIN Region origin ASes present in the Internet Routing Table: 19268 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7052 ARIN Region transit ASes present in the Internet Routing Table: 1990 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: 5288 Number of ARIN addresses announced to Internet: 1349031168 Equivalent to 80 /8s, 104 /16s and 149 /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: 277893 Total RIPE prefixes after maximum aggregation: 137090 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 276976 Unique aggregates announced from the RIPE address blocks: 178840 RIPE Region origin ASes present in the Internet Routing Table: 29010 RIPE Prefixes per ASN: 9.55 RIPE Region origin ASes announcing only one prefix: 12065 RIPE Region transit ASes present in the Internet Routing Table: 3979 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: 12646 Number of RIPE addresses announced to Internet: 732218880 Equivalent to 43 /8s, 164 /16s and 198 /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: 124559 Total LACNIC prefixes after maximum aggregation: 30135 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120804 Unique aggregates announced from the LACNIC address blocks: 49283 LACNIC Region origin ASes present in the Internet Routing Table: 11279 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2641 LACNIC Region transit ASes present in the Internet Routing Table: 2551 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9249 Number of LACNIC addresses announced to Internet: 170777088 Equivalent to 10 /8s, 45 /16s and 218 /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: 34834 Total AfriNIC prefixes after maximum aggregation: 6798 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 47467 Unique aggregates announced from the AfriNIC address blocks: 13975 AfriNIC Region origin ASes present in the Internet Routing Table: 1953 AfriNIC Prefixes per ASN: 24.30 AfriNIC Region origin ASes announcing only one prefix: 713 AfriNIC Region transit ASes present in the Internet Routing Table: 380 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: 1318 Number of AfriNIC addresses announced to Internet: 105155328 Equivalent to 6 /8s, 68 /16s and 139 /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 12897 8761 115 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4597 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 7552 3939 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3684 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3289 1868 99 VNPT-AS-VN VNPT Corp, VN 56046 2967 811 177 CMNET-JIANGSU-AP China Mobile communicati 24560 2919 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2171 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 13892 41102 5355 AMAZON-02, US 11492 4735 314 779 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3647 1320 82 SHAW, CA 22773 3344 3033 165 ASN-CXA-ALL-CCI-22773-RDC, US 174 3270 8759 847 COGENT-174, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3216 3858 436 GOOGLE-CLOUD-PLATFORM, US 16625 3044 1290 2210 AKAMAI-AS, US 4155 2936 229 1744 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 7546 1711 149 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 4029 3395 127 AKAMAI-ASN1, NL 9009 3866 366 2180 M247, RO 12389 3112 2315 866 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2403 361 584 TELLCOM-AS, TR 212238 2332 165 1696 CDNEXT, GB 203020 1710 218 804 HOSTROYALE, IN 13188 1605 100 37 TRIOLAN, UA 8452 1595 1852 14 TE-AS TE-AS, EG 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 12268 3270 578 UNINET, MX 10620 3483 472 1049 Telmex Colombia S.A., CO 13999 2527 511 349 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1218 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1183 371 22 Telefonica del Peru S.A.A., PE 22884 1060 70 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1018 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 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1422 1501 376 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 970 521 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 568 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 13892 41102 5355 AMAZON-02, US 9808 12897 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 12268 3270 578 UNINET, MX 12479 7546 1711 149 UNI2-AS, ES 7545 6139 838 617 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4735 314 779 CABLEONE, US 18403 4597 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4464 535 311 BBIL-AP BHARTI Airtel Ltd., IN 20940 4029 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 12897 12782 CHINAMOBILE-CN China Mobile Communications Grou 8151 12268 11690 UNINET, MX 12479 7546 7397 UNI2-AS, ES 7545 6139 5522 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4597 4572 FPT-AS-AP FPT Telecom Company, VN 9498 4464 4153 BBIL-AP BHARTI Airtel Ltd., IN 11492 4735 3956 CABLEONE, US 7552 3939 3912 VIETEL-AS-AP Viettel Group, VN 20940 4029 3902 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 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 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 /13:580 /14:1208 /15:2151 /16:13794 /17:8222 /18:13494 /19:24580 /20:43961 /21:51846 /22:112231 /23:103222 /24:619259 /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 12479 6507 7546 UNI2-AS, ES 8151 6478 12268 UNINET, MX 11492 3552 4735 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3444 3647 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2496 3344 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2380 13892 AMAZON-02, US 30036 2309 2652 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2203 3483 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) ---------------------------------------------- 1:2418 2:1534 3:888 4:10 5:4794 6:158 7:6 8:1544 9:3 11:172 12:1251 13:452 14:2582 15:379 16:285 17:378 18:902 20:564 21:4 22:188 23:7828 24:2703 25:2 27:2815 29:19 31:3366 32:29 33:1 34:81 35:259 36:4289 37:4574 38:9298 39:981 40:262 41:4274 42:2074 43:2698 44:383 45:18590 46:5127 47:337 49:1957 50:2053 51:591 52:1561 54:332 55:1061 56:11 57:283 58:2249 59:1280 60:1178 61:2863 62:3015 63:1783 64:5590 65:2141 66:4795 67:3102 68:1067 69:3920 70:1032 71:635 72:2844 74:2807 75:1509 76:602 77:2772 78:1911 79:1732 80:2228 81:2078 82:3269 83:1446 84:1924 85:3415 86:1124 87:2148 88:1356 89:4463 90:775 91:8412 92:2766 93:2966 94:4143 95:4451 96:1468 97:310 98:955 99:707 100:71 101:1212 102:3924 103:32244 104:5276 105:761 106:876 107:2641 108:1265 109:4175 110:2239 111:3576 112:2461 113:1847 114:1978 115:2227 116:2064 117:2696 118:3041 119:1912 120:2202 121:1334 122:2809 123:2238 124:1657 125:2881 126:91 128:1624 129:967 130:1303 131:2072 132:790 133:451 134:1623 135:356 136:1477 137:1314 138:2836 139:1600 140:1618 141:1537 142:1911 143:1983 144:1207 145:577 146:2181 147:2105 148:2712 149:3006 150:1252 151:2386 152:2108 153:590 154:7485 155:1892 156:3017 157:1952 158:1386 159:2538 160:3615 161:1925 162:3899 163:2277 164:1878 165:2473 166:1539 167:2056 168:3896 169:770 170:5227 171:1004 172:4250 173:3389 174:903 175:1323 176:3743 177:4807 178:3993 179:2352 180:2593 181:4174 182:3595 183:2265 184:2078 185:21632 186:5319 187:4608 188:4283 189:4347 190:9445 191:1576 192:11368 193:9486 194:7788 195:5623 196:3295 197:3206 198:6233 199:8637 200:8188 201:6386 202:10396 203:10644 204:4600 205:3652 206:4527 207:3644 208:4290 209:5174 210:4727 211:2649 212:4606 213:3835 214:1038 215:51 216:6803 217:3305 218:1435 219:398 220:2140 221:1211 222:742 223:2812 End of report