IPv4 R&E Routing Table Report 21:10 GMT Wed 14 May, 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: 983505 Prefixes after maximum aggregation (per Origin AS): 378540 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 479369 Number of IPv4 prefixes with a valid ROA: 544930 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 438430 Total ASes present in the Internet Routing Table: 76828 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65807 Origin ASes announcing only one prefix: 26947 Transit ASes present in the Internet Routing Table: 11021 Transit-only ASes present in the Internet Routing Table: 548 Paths with bogon ASNs present in the IPv4 Routing Table: 20 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 60 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 998 Number of instances of unregistered ASNs: 1004 Number of 32-bit ASNs allocated by the RIRs: 46395 Number of 32-bit ASNs visible in the Routing Table: 38230 Prefixes from 32-bit ASNs in the Routing Table: 202032 Number of bogon 32-bit ASNs visible in the Routing Table: 29 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 489 Number of addresses announced to Internet: 3109759488 Equivalent to 185 /8s, 91 /16s and 42 /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: 321856 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258309 Total APNIC prefixes after maximum aggregation: 77054 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 248724 Unique aggregates announced from the APNIC address blocks: 103109 APNIC Region origin ASes present in the Internet Routing Table: 14602 APNIC Prefixes per ASN: 17.03 APNIC Region origin ASes announcing only one prefix: 4454 APNIC Region transit ASes present in the Internet Routing Table: 1960 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10118 Number of APNIC addresses announced to Internet: 748536320 Equivalent to 44 /8s, 157 /16s and 194 /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: 290696 Total ARIN prefixes after maximum aggregation: 130519 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 292009 Unique aggregates announced from the ARIN address blocks: 138625 ARIN Region origin ASes present in the Internet Routing Table: 19244 ARIN Prefixes per ASN: 15.17 ARIN Region origin ASes announcing only one prefix: 7044 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: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5209 Number of ARIN addresses announced to Internet: 1353113088 Equivalent to 80 /8s, 166 /16s and 222 /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: 274046 Total RIPE prefixes after maximum aggregation: 134084 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272103 Unique aggregates announced from the RIPE address blocks: 174450 RIPE Region origin ASes present in the Internet Routing Table: 28917 RIPE Prefixes per ASN: 9.41 RIPE Region origin ASes announcing only one prefix: 12065 RIPE Region transit ASes present in the Internet Routing Table: 3985 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12441 Number of RIPE addresses announced to Internet: 730920192 Equivalent to 43 /8s, 144 /16s and 245 /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: 123766 Total LACNIC prefixes after maximum aggregation: 29481 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120126 Unique aggregates announced from the LACNIC address blocks: 48903 LACNIC Region origin ASes present in the Internet Routing Table: 11234 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2689 LACNIC Region transit ASes present in the Internet Routing Table: 2505 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9181 Number of LACNIC addresses announced to Internet: 171736320 Equivalent to 10 /8s, 60 /16s and 125 /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: 35690 Total AfriNIC prefixes after maximum aggregation: 6774 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 50053 Unique aggregates announced from the AfriNIC address blocks: 13879 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 26.18 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 60 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281 Number of AfriNIC addresses announced to Internet: 105225472 Equivalent to 6 /8s, 69 /16s and 157 /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 10920 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6164 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4392 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4277 533 300 BBIL-AP BHARTI Airtel Ltd., IN 7552 3908 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3260 1869 100 VNPT-AS-VN VNPT Corp, VN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2172 11522 647 KIXS-AS-KR Korea Telecom, KR 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 13381 40826 4957 AMAZON-02, US 11492 4727 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3621 1320 81 SHAW, CA 22773 3615 3053 213 ASN-CXA-ALL-CCI-22773-RDC, US 174 3478 8751 915 COGENT-174, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3166 3852 417 GOOGLE-CLOUD-PLATFORM, US 16625 3155 1320 2267 AKAMAI-AS, US 36352 2789 228 848 AS-COLOCROSSING, 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 7697 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 4061 3395 127 AKAMAI-ASN1, NL 9009 3782 325 1958 M247, RO 12389 3069 2304 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2143 151 1577 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1604 1852 14 TE-AS TE-AS, EG 62240 1421 94 736 CLOUVIDER Clouvider - Global ASN, GB 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 12089 3246 579 UNINET, MX 10620 3500 480 1019 Telmex Colombia S.A., CO 13999 2517 540 360 Mega Cable, S.A. de C.V., MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1204 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1190 371 22 Telefonica del Peru S.A.A., PE 22884 1058 70 380 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 374 163 Axtel, S.A.B. de C.V., MX 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 1778 632 28 RAYA-AS, EG 24863 1652 389 16 LINKdotNET-AS, EG 29571 1597 102 33 ORANGE-COTE-IVOIRE, CI 36992 1432 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1040 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 551 82 3 KENET-AS, KE 15399 532 56 54 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 13381 40826 4957 AMAZON-02, US 8151 12089 3246 579 UNINET, MX 9808 10920 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7697 1714 148 UNI2-AS, ES 7545 6164 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4727 313 592 CABLEONE, US 18403 4392 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4277 533 300 BBIL-AP BHARTI Airtel Ltd., IN 20940 4061 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 8151 12089 11510 UNINET, MX 9808 10920 10824 CHINAMOBILE-CN China Mobile Communications Grou 12479 7697 7549 UNI2-AS, ES 7545 6164 5510 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4392 4367 FPT-AS-AP FPT Telecom Company, VN 11492 4727 4135 CABLEONE, US 9498 4277 3977 BBIL-AP BHARTI Airtel Ltd., IN 20940 4061 3934 AKAMAI-ASN1, NL 7552 3908 3882 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/AARNET/data-spar 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: 6939 HURRICANE, US 23.138.212.0/24 Origin: 400910 MOOSE, US 23.138.212.0/24 Transit: 20473 AS-VULTR, 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 23.147.240.0/24 Origin: 32302 CIBC-US, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /9:16 /10:41 /11:93 /12:300 /13:582 /14:1223 /15:2168 /16:13987 /17:8272 /18:13720 /19:24623 /20:43900 /21:51670 /22:111935 /23:102057 /24:608901 /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 6615 7697 UNI2-AS, ES 8151 6288 12089 UNINET, MX 11492 3533 4727 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3621 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2741 3615 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2333 13381 AMAZON-02, US 30036 2221 2562 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3500 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) ---------------------------------------------- 1:2333 2:1532 3:729 4:11 5:4686 6:163 7:6 8:1585 9:1 11:172 12:1365 13:413 14:2518 15:353 16:284 17:372 18:916 20:518 21:4 22:188 23:7563 24:2804 25:2 27:2776 29:19 31:3262 32:37 33:1 34:80 35:207 36:2814 37:4643 38:9119 39:910 40:169 41:4215 42:2003 43:2577 44:382 45:18563 46:5065 47:301 49:1931 50:1884 51:587 52:1555 54:313 55:1094 56:11 57:258 58:2216 59:1216 60:1166 61:2777 62:2922 63:1816 64:5480 65:2061 66:4679 67:3070 68:1153 69:3937 70:1128 71:634 72:2850 74:2787 75:1619 76:614 77:2704 78:1896 79:1757 80:2201 81:2072 82:3145 83:1432 84:1864 85:3431 86:1068 87:2161 88:1322 89:4369 90:774 91:8348 92:2689 93:2893 94:4041 95:4318 96:1463 97:312 98:1019 99:685 100:72 101:1152 102:3948 103:32209 104:5029 105:762 106:1037 107:2666 108:1205 109:4075 110:2235 111:3324 112:2068 113:1788 114:1968 115:2200 116:2048 117:2674 118:2889 119:1952 120:1922 121:1374 122:2753 123:2178 124:1569 125:2844 126:91 128:1620 129:958 130:1307 131:1964 132:784 133:451 134:1543 135:332 136:1346 137:1307 138:2885 139:1600 140:1588 141:1501 142:1900 143:1737 144:1099 145:505 146:2168 147:2106 148:2684 149:2859 150:1214 151:1895 152:2087 153:560 154:8051 155:1959 156:3330 157:1893 158:1304 159:2450 160:3847 161:1880 162:3734 163:2146 164:1696 165:2200 166:1460 167:1904 168:4297 169:793 170:5103 171:1010 172:4454 173:3278 174:920 175:1302 176:3682 177:4682 178:3622 179:2281 180:2622 181:4068 182:3431 183:2121 184:2118 185:21591 186:5119 187:4434 188:4240 189:4253 190:9550 191:1458 192:11252 193:9496 194:7771 195:5511 196:3296 197:3720 198:6199 199:8476 200:8209 201:6341 202:10281 203:10621 204:4564 205:3545 206:4512 207:3580 208:4282 209:5207 210:4592 211:2540 212:4537 213:3728 214:1033 215:48 216:6734 217:3140 218:1342 219:376 220:2084 221:1086 222:718 223:2382 End of report