IPv4 R&E Routing Table Report 21:10 GMT Mon 13 Apr, 2026 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: 1040814 Prefixes after maximum aggregation (per Origin AS): 399362 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 513832 Number of IPv4 prefixes with a valid ROA: 632003 Number of IPv4 prefixes with an invalid ROA: 96 Number of IPv4 prefixes with no ROA: 408715 Total ASes present in the Internet Routing Table: 78301 Prefixes per ASN: 13.29 Origin-only ASes present in the Internet Routing Table: 67043 Origin ASes announcing only one prefix: 27397 Transit ASes present in the Internet Routing Table: 11258 Transit-only ASes present in the Internet Routing Table: 582 Paths with bogon ASNs present in the IPv4 Routing Table: 8 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 960 Number of instances of unregistered ASNs: 990 Number of 32-bit ASNs allocated by the RIRs: 49318 Number of 32-bit ASNs visible in the Routing Table: 40353 Prefixes from 32-bit ASNs in the Routing Table: 227253 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 421 Number of addresses announced to Internet: 3103676672 Equivalent to 184 /8s, 254 /16s and 89 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 338921 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283096 Total APNIC prefixes after maximum aggregation: 82534 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269442 Unique aggregates announced from the APNIC address blocks: 107756 APNIC Region origin ASes present in the Internet Routing Table: 15163 APNIC Prefixes per ASN: 17.77 APNIC Region origin ASes announcing only one prefix: 4661 APNIC Region transit ASes present in the Internet Routing Table: 2048 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10729 Number of APNIC addresses announced to Internet: 748857344 Equivalent to 44 /8s, 162 /16s and 168 /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: 303721 Total ARIN prefixes after maximum aggregation: 135908 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303308 Unique aggregates announced from the ARIN address blocks: 146941 ARIN Region origin ASes present in the Internet Routing Table: 19428 ARIN Prefixes per ASN: 15.61 ARIN Region origin ASes announcing only one prefix: 7115 ARIN Region transit ASes present in the Internet Routing Table: 1977 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: 5551 Number of ARIN addresses announced to Internet: 1348156672 Equivalent to 80 /8s, 91 /16s and 61 /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, 393216-404380 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: 287945 Total RIPE prefixes after maximum aggregation: 142398 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290488 Unique aggregates announced from the RIPE address blocks: 189046 RIPE Region origin ASes present in the Internet Routing Table: 29387 RIPE Prefixes per ASN: 9.88 RIPE Region origin ASes announcing only one prefix: 12176 RIPE Region transit ASes present in the Internet Routing Table: 4046 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13274 Number of RIPE addresses announced to Internet: 733146880 Equivalent to 43 /8s, 178 /16s and 239 /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: 128046 Total LACNIC prefixes after maximum aggregation: 30862 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122947 Unique aggregates announced from the LACNIC address blocks: 50279 LACNIC Region origin ASes present in the Internet Routing Table: 11389 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2707 LACNIC Region transit ASes present in the Internet Routing Table: 2604 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9416 Number of LACNIC addresses announced to Internet: 169884416 Equivalent to 10 /8s, 32 /16s and 59 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 37046 Total AfriNIC prefixes after maximum aggregation: 7056 AfriNIC Deaggregation factor: 5.25 Prefixes being announced from the AfriNIC address blocks: 54207 Unique aggregates announced from the AfriNIC address blocks: 19449 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.84 AfriNIC Region origin ASes announcing only one prefix: 738 AfriNIC Region transit ASes present in the Internet Routing Table: 388 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1383 Number of AfriNIC addresses announced to Internet: 103436288 Equivalent to 6 /8s, 42 /16s and 80 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13825 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4909 550 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4564 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4060 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3670 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3483 886 176 CMNET-JIANGSU-AP China Mobile communicati 17561 3444 217 554 LCS-AS-AP LARUS Limited, HK 45899 3347 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 3011 857 517 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 14685 41278 5680 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4667 310 1039 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 75 SHAW - Shaw Communications, CA 396982 3322 4859 494 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3204 8764 819 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2715 222 911 AS-COLOCROSSING - HostPapa, US 16625 2705 1217 2096 AKAMAI-AS - Akamai Technologies, Inc., 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 7163 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3955 3389 111 AKAMAI-ASN1, NL 9009 3827 354 2246 M247, RO 12389 3147 2318 874 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2719 197 2001 CDNEXT, GB 34984 2452 365 574 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1638 249 810 HOSTROYALE, IN 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 12750 3309 619 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2446 506 345 Mega Cable, S.A. de C.V., MX 11830 1938 369 65 Instituto Costarricense de Electricidad y 11664 1436 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1372 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1246 371 22 INTEGRATEL PERU S.A.A., PE 26615 1065 2392 101 TIM SA, BR 22884 1055 71 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2025 648 34 RAYA-AS, EG 36992 1859 1532 341 ETISALAT-MISR, EG 24863 1294 389 16 LINKdotNET-AS, EG 36935 1242 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 643 173 262 NTT-DATA-Inc, ZA 3741 557 724 324 NTT-DATA-Inc, ZA 36914 552 82 3 KENET-AS, 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 14685 41278 5680 AMAZON-02 - Amazon.com, Inc., US 9808 13825 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12750 3309 619 UNINET, MX 12479 7163 1711 149 UNI2-AS, ES 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4909 550 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4667 310 1039 CABLEONE - CABLE ONE, INC., US 18403 4564 347 25 FPT-AS-AP FPT Telecom Company, VN 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 13825 13705 CHINAMOBILE-CN China Mobile Communications Grou 8151 12750 12131 UNINET, MX 12479 7163 7014 UNI2-AS, ES 7545 5916 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4909 4579 BBIL-AP BHARTI Airtel Ltd., IN 18403 4564 4539 FPT-AS-AP FPT Telecom Company, VN 22773 4782 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4060 4031 VIETEL-AS-AP Viettel Group, VN 20940 3955 3844 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/AARNET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /10:39 /11:95 /12:297 /13:585 /14:1192 /15:2112 /16:13616 /17:8309 /18:13336 /19:25473 /20:45781 /21:52387 /22:113685 /23:107307 /24:656569 /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 6940 12750 UNINET, MX 12479 6106 7163 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3529 4667 CABLEONE - CABLE ONE, INC., US 6327 3505 3723 SHAW - Shaw Communications, CA 22773 3055 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2643 14685 AMAZON-02 - Amazon.com, Inc., US 30036 2322 2670 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 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) ---------------------------------------------- 1:2496 2:1865 3:1005 4:5 5:5104 6:197 7:6 8:1488 9:39 11:172 12:1184 13:690 14:2686 15:458 16:176 17:422 18:916 20:602 21:4 22:188 23:8214 24:2774 25:2 27:2818 28:1 29:19 31:3479 32:36 34:87 35:283 36:4664 37:4461 38:10104 39:1281 40:422 41:4554 42:2176 43:3063 44:446 45:19789 46:4873 47:408 48:125 49:2229 50:2021 51:626 52:1317 54:281 55:1118 56:11 57:323 58:2344 59:1377 60:1174 61:3127 62:3125 63:1724 64:6315 65:2133 66:6089 67:3262 68:1500 69:4207 70:1055 71:621 72:3188 74:3026 75:1491 76:587 77:2932 78:1970 79:1793 80:2349 81:2223 82:4055 83:1448 84:2142 85:3803 86:1091 87:2352 88:1340 89:4715 90:781 91:8433 92:2823 93:3017 94:4353 95:4664 96:1454 97:315 98:942 99:811 100:68 101:1465 102:4485 103:32500 104:5365 105:821 106:912 107:2875 108:1239 109:4224 110:2280 111:4108 112:3159 113:1961 114:2271 115:2331 116:2160 117:3505 118:2995 119:2085 120:2700 121:1560 122:2993 123:2286 124:1658 125:2974 126:125 128:1627 129:966 130:1650 131:2485 132:827 133:472 134:1667 135:611 136:1615 137:1545 138:3332 139:1636 140:1752 141:1728 142:2531 143:2129 144:1740 145:646 146:2209 147:2217 148:2772 149:3108 150:1361 151:2810 152:2321 153:1389 154:10115 155:2291 156:4670 157:2305 158:1538 159:2858 160:3816 161:1956 162:4025 163:2501 164:2038 165:2640 166:1260 167:2300 168:4036 169:862 170:5576 171:1126 172:4593 173:3481 174:878 175:1364 176:3874 177:4918 178:4363 179:2312 180:3028 181:4520 182:4011 183:2839 184:2029 185:21821 186:5800 187:4947 188:4595 189:4495 190:9844 191:1582 192:11482 193:9620 194:7875 195:5830 196:3392 197:3263 198:6291 199:6068 200:8200 201:6383 202:10705 203:10665 204:4809 205:3750 206:4561 207:3986 208:4389 209:5457 210:4768 211:2681 212:5031 213:4135 214:1045 215:47 216:7290 217:3558 218:1701 219:414 220:2197 221:1312 222:938 223:3409 End of report