IPv4 R&E Routing Table Report 21:10 GMT Thu 22 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: 984232 Prefixes after maximum aggregation (per Origin AS): 379086 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 481327 Number of IPv4 prefixes with a valid ROA: 546613 Number of IPv4 prefixes with an invalid ROA: 145 Number of IPv4 prefixes with no ROA: 437474 Total ASes present in the Internet Routing Table: 76830 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65825 Origin ASes announcing only one prefix: 26951 Transit ASes present in the Internet Routing Table: 11005 Transit-only ASes present in the Internet Routing Table: 548 Paths with bogon ASNs present in the IPv4 Routing Table: 21 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 101 Max AS path prepend of ASN ( 37447) 98 Prefixes from unregistered ASNs in the Routing Table: 1000 Number of instances of unregistered ASNs: 1006 Number of 32-bit ASNs allocated by the RIRs: 46491 Number of 32-bit ASNs visible in the Routing Table: 38249 Prefixes from 32-bit ASNs in the Routing Table: 203320 Number of bogon 32-bit ASNs visible in the Routing Table: 31 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 460 Number of addresses announced to Internet: 3109620480 Equivalent to 185 /8s, 89 /16s and 11 /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: 321725 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258093 Total APNIC prefixes after maximum aggregation: 77242 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 249170 Unique aggregates announced from the APNIC address blocks: 104225 APNIC Region origin ASes present in the Internet Routing Table: 14605 APNIC Prefixes per ASN: 17.06 APNIC Region origin ASes announcing only one prefix: 4450 APNIC Region transit ASes present in the Internet Routing Table: 1957 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: 10124 Number of APNIC addresses announced to Internet: 748597248 Equivalent to 44 /8s, 158 /16s and 176 /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: 291634 Total ARIN prefixes after maximum aggregation: 131008 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 292246 Unique aggregates announced from the ARIN address blocks: 139371 ARIN Region origin ASes present in the Internet Routing Table: 19243 ARIN Prefixes per ASN: 15.19 ARIN Region origin ASes announcing only one prefix: 7056 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: 5215 Number of ARIN addresses announced to Internet: 1352834048 Equivalent to 80 /8s, 162 /16s and 156 /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: 273891 Total RIPE prefixes after maximum aggregation: 134126 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272177 Unique aggregates announced from the RIPE address blocks: 174739 RIPE Region origin ASes present in the Internet Routing Table: 28908 RIPE Prefixes per ASN: 9.42 RIPE Region origin ASes announcing only one prefix: 12056 RIPE Region transit ASes present in the Internet Routing Table: 3983 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: 731423744 Equivalent to 43 /8s, 152 /16s and 164 /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: 124220 Total LACNIC prefixes after maximum aggregation: 29462 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120626 Unique aggregates announced from the LACNIC address blocks: 48949 LACNIC Region origin ASes present in the Internet Routing Table: 11241 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2690 LACNIC Region transit ASes present in the Internet Routing Table: 2502 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: 9189 Number of LACNIC addresses announced to Internet: 171777024 Equivalent to 10 /8s, 61 /16s and 28 /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: 35394 Total AfriNIC prefixes after maximum aggregation: 6628 AfriNIC Deaggregation factor: 5.34 Prefixes being announced from the AfriNIC address blocks: 49552 Unique aggregates announced from the AfriNIC address blocks: 13635 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 25.88 AfriNIC Region origin ASes announcing only one prefix: 699 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: 101 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1280 Number of AfriNIC addresses announced to Internet: 104775424 Equivalent to 6 /8s, 62 /16s and 191 /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 11086 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6179 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4453 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4286 534 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3906 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 100 VNPT-AS-VN VNPT Corp, VN 24560 2867 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2166 434 193 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 13459 40825 5097 AMAZON-02, US 11492 4734 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 22773 3622 3054 214 ASN-CXA-ALL-CCI-22773-RDC, US 174 3413 8746 882 COGENT-174, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3168 3852 417 GOOGLE-CLOUD-PLATFORM, US 16625 3152 1320 2266 AKAMAI-AS, US 36352 2827 231 858 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 7713 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 4062 3395 127 AKAMAI-ASN1, NL 9009 3825 333 2041 M247, RO 12389 3071 2305 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2149 151 1580 CDNEXT, GB 8452 1633 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1423 94 738 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 12150 3251 581 UNINET, MX 10620 3499 480 1018 Telmex Colombia S.A., CO 13999 2512 540 364 Mega Cable, S.A. de C.V., MX 11830 1990 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 1205 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1198 371 22 Telefonica del Peru S.A.A., PE 22884 1061 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 1780 644 27 RAYA-AS, EG 24863 1652 389 17 LINKdotNET-AS, EG 29571 1607 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 1046 523 46 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 546 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 13459 40825 5097 AMAZON-02, US 8151 12150 3251 581 UNINET, MX 9808 11086 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7713 1714 148 UNI2-AS, ES 7545 6179 844 651 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4734 314 586 CABLEONE, US 18403 4453 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4286 534 301 BBIL-AP BHARTI Airtel Ltd., IN 20940 4062 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 12150 11569 UNINET, MX 9808 11086 10990 CHINAMOBILE-CN China Mobile Communications Grou 12479 7713 7565 UNI2-AS, ES 7545 6179 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4453 4428 FPT-AS-AP FPT Telecom Company, VN 11492 4734 4148 CABLEONE, US 9498 4286 3985 BBIL-AP BHARTI Airtel Ltd., IN 20940 4062 3935 AKAMAI-ASN1, NL 7552 3906 3880 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 23.140.216.0/24 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 23.146.16.0/24 Origin: 396281 RESERVED, ZZ 23.146.16.0/24 Transit: 7018 ATT-INTERNET4, US 23.146.19.0/24 Origin: 396281 RESERVED, ZZ 23.146.19.0/24 Transit: 7018 ATT-INTERNET4, 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 /9:16 /10:41 /11:92 /12:299 /13:583 /14:1223 /15:2166 /16:13912 /17:8272 /18:13698 /19:24602 /20:43965 /21:51719 /22:111991 /23:102400 /24:609236 /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 6629 7713 UNI2-AS, ES 8151 6343 12150 UNINET, MX 11492 3531 4734 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3622 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2746 3622 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2324 13459 AMAZON-02, US 30036 2233 2575 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3499 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) ---------------------------------------------- 1:2366 2:1521 3:778 4:9 5:4705 6:163 7:6 8:1580 9:1 11:172 12:1362 13:432 14:2520 15:353 16:284 17:376 18:920 20:527 21:4 22:188 23:7587 24:2806 25:2 27:2784 29:19 31:3271 32:36 33:1 34:80 35:210 36:2955 37:4626 38:9102 39:909 40:169 41:4220 42:1994 43:2588 44:383 45:18581 46:5075 47:302 49:1930 50:1890 51:590 52:1559 54:315 55:1096 56:11 57:261 58:2220 59:1220 60:1168 61:2790 62:2921 63:1805 64:5461 65:2066 66:4654 67:3068 68:1158 69:3930 70:1127 71:634 72:2841 74:2773 75:1519 76:615 77:2705 78:1909 79:1479 80:2193 81:2086 82:3124 83:1438 84:1868 85:3425 86:1066 87:2137 88:1321 89:4384 90:775 91:8365 92:2700 93:2900 94:4056 95:4332 96:1461 97:312 98:1020 99:686 100:71 101:1177 102:3871 103:32221 104:5052 105:766 106:1036 107:2672 108:1216 109:3936 110:2242 111:3326 112:2095 113:1807 114:1969 115:2177 116:2047 117:2584 118:2881 119:1957 120:1949 121:1380 122:2763 123:2190 124:1589 125:2854 126:91 128:1621 129:959 130:1317 131:1972 132:783 133:451 134:1541 135:332 136:1348 137:1308 138:2865 139:1601 140:1588 141:1503 142:1903 143:1761 144:1104 145:504 146:2189 147:2113 148:2703 149:2885 150:1213 151:1930 152:2091 153:564 154:8041 155:1976 156:3192 157:1912 158:1322 159:2452 160:3826 161:1879 162:3757 163:2171 164:1693 165:2209 166:1478 167:1893 168:4305 169:798 170:5083 171:1009 172:4453 173:3296 174:925 175:1298 176:3699 177:4746 178:3641 179:2316 180:2631 181:4064 182:3441 183:2092 184:2115 185:21577 186:5165 187:4493 188:4258 189:4333 190:9543 191:1506 192:11275 193:9476 194:7772 195:5522 196:3235 197:3653 198:6201 199:8487 200:8204 201:6352 202:10302 203:10629 204:4554 205:3643 206:4490 207:3578 208:4268 209:5214 210:4598 211:2545 212:4552 213:3728 214:1025 215:48 216:6743 217:3135 218:1346 219:381 220:2087 221:1096 222:722 223:2388 End of report