IPv4 R&E Routing Table Report 21:10 GMT Sat 18 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: 1041071 Prefixes after maximum aggregation (per Origin AS): 399603 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 514672 Number of IPv4 prefixes with a valid ROA: 633067 Number of IPv4 prefixes with an invalid ROA: 95 Number of IPv4 prefixes with no ROA: 407909 Total ASes present in the Internet Routing Table: 78307 Prefixes per ASN: 13.29 Origin-only ASes present in the Internet Routing Table: 67057 Origin ASes announcing only one prefix: 27392 Transit ASes present in the Internet Routing Table: 11250 Transit-only ASes present in the Internet Routing Table: 584 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: 1069 Number of instances of unregistered ASNs: 1099 Number of 32-bit ASNs allocated by the RIRs: 49372 Number of 32-bit ASNs visible in the Routing Table: 40393 Prefixes from 32-bit ASNs in the Routing Table: 227642 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: 527 Number of addresses announced to Internet: 3103703296 Equivalent to 184 /8s, 254 /16s and 193 /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: 339335 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282553 Total APNIC prefixes after maximum aggregation: 82490 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269418 Unique aggregates announced from the APNIC address blocks: 107768 APNIC Region origin ASes present in the Internet Routing Table: 15155 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4672 APNIC Region transit ASes present in the Internet Routing Table: 2044 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10727 Number of APNIC addresses announced to Internet: 748953088 Equivalent to 44 /8s, 164 /16s and 30 /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: 303850 Total ARIN prefixes after maximum aggregation: 135921 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 303436 Unique aggregates announced from the ARIN address blocks: 147138 ARIN Region origin ASes present in the Internet Routing Table: 19418 ARIN Prefixes per ASN: 15.63 ARIN Region origin ASes announcing only one prefix: 7107 ARIN Region transit ASes present in the Internet Routing Table: 1975 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: 5555 Number of ARIN addresses announced to Internet: 1347877120 Equivalent to 80 /8s, 86 /16s and 249 /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: 288635 Total RIPE prefixes after maximum aggregation: 142733 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 291196 Unique aggregates announced from the RIPE address blocks: 189682 RIPE Region origin ASes present in the Internet Routing Table: 29413 RIPE Prefixes per ASN: 9.90 RIPE Region origin ASes announcing only one prefix: 12186 RIPE Region transit ASes present in the Internet Routing Table: 4052 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13306 Number of RIPE addresses announced to Internet: 733497600 Equivalent to 43 /8s, 184 /16s and 73 /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: 127907 Total LACNIC prefixes after maximum aggregation: 30777 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 122758 Unique aggregates announced from the LACNIC address blocks: 50309 LACNIC Region origin ASes present in the Internet Routing Table: 11359 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2689 LACNIC Region transit ASes present in the Internet Routing Table: 2599 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: 9415 Number of LACNIC addresses announced to Internet: 169771776 Equivalent to 10 /8s, 30 /16s and 131 /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: 37057 Total AfriNIC prefixes after maximum aggregation: 7051 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 53735 Unique aggregates announced from the AfriNIC address blocks: 19373 AfriNIC Region origin ASes present in the Internet Routing Table: 2026 AfriNIC Prefixes per ASN: 26.52 AfriNIC Region origin ASes announcing only one prefix: 738 AfriNIC Region transit ASes present in the Internet Routing Table: 389 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1390 Number of AfriNIC addresses announced to Internet: 103378688 Equivalent to 6 /8s, 41 /16s and 111 /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 13836 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4922 551 331 BBIL-AP BHARTI Airtel Ltd., IN 18403 4557 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4056 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3679 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3486 886 176 CMNET-JIANGSU-AP China Mobile communicati 45899 3353 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2991 847 549 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2893 182 492 LCS-AS-AP LARUS Limited, HK 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 14740 41277 5676 AMAZON-02 - Amazon.com, Inc., US 22773 4774 3116 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4669 310 1040 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3722 1305 75 SHAW - Shaw Communications, CA 396982 3322 4859 497 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3305 8763 815 COGENT-174 - Cogent Communications, LLC, 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2745 224 925 AS-COLOCROSSING - HostPapa, US 30036 2674 367 312 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7175 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 20940 3961 3389 111 AKAMAI-ASN1, NL 9009 3825 353 2249 M247, RO 12389 3148 2320 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2745 199 2025 CDNEXT, GB 34984 2451 365 575 TELLCOM-AS, TR 8452 1711 1852 14 TE-AS TE-AS, EG 203020 1667 252 832 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 12837 3309 619 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2436 506 346 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1437 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 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 1072 2392 100 TIM SA, BR 22884 1062 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 1533 336 ETISALAT-MISR, EG 24863 1282 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1223 520 41 Vodafone-, EG 37069 1112 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 554 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 14740 41277 5676 AMAZON-02 - Amazon.com, Inc., US 9808 13836 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12837 3309 619 UNINET, MX 12479 7175 1711 149 UNI2-AS, ES 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4922 551 331 BBIL-AP BHARTI Airtel Ltd., IN 22773 4774 3116 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4669 310 1040 CABLEONE - CABLE ONE, INC., US 18403 4557 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 13836 13715 CHINAMOBILE-CN China Mobile Communications Grou 8151 12837 12218 UNINET, MX 12479 7175 7026 UNI2-AS, ES 7545 5906 5416 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4922 4591 BBIL-AP BHARTI Airtel Ltd., IN 18403 4557 4532 FPT-AS-AP FPT Telecom Company, VN 22773 4774 4411 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4056 4028 VIETEL-AS-AP Viettel Group, VN 20940 3961 3850 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 198767 UNALLOCATED 5.175.194.0/24 212895 ROUTE64_ORG, DE 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 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 /15:2113 /16:13599 /17:8299 /18:13346 /19:25476 /20:45775 /21:52399 /22:113577 /23:107430 /24:656818 /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 7025 12837 UNINET, MX 12479 6116 7175 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3531 4669 CABLEONE - CABLE ONE, INC., US 6327 3505 3722 SHAW - Shaw Communications, CA 22773 3053 4774 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2647 14740 AMAZON-02 - Amazon.com, Inc., US 30036 2326 2674 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2490 2:1890 3:1012 4:5 5:5111 6:193 7:6 8:1487 9:39 11:172 12:1188 13:693 14:2689 15:459 16:195 17:424 18:916 20:602 21:4 22:188 23:8236 24:2777 25:2 27:2830 28:1 29:19 31:3468 32:36 34:87 35:283 36:4684 37:4446 38:10180 39:1285 40:417 41:4531 42:2178 43:3056 44:448 45:19721 46:4894 47:411 48:125 49:2230 50:2020 51:656 52:1313 54:285 55:1117 56:11 57:324 58:2338 59:1377 60:1174 61:3130 62:3129 63:1721 64:6323 65:2130 66:6081 67:3262 68:1500 69:4204 70:1051 71:621 72:3204 74:3029 75:1501 76:588 77:2940 78:1980 79:1797 80:2344 81:2235 82:4100 83:1447 84:2146 85:3820 86:1089 87:2380 88:1341 89:4745 90:801 91:8442 92:2820 93:3015 94:4349 95:4683 96:1458 97:314 98:941 99:813 100:70 101:1473 102:4481 103:32437 104:5358 105:854 106:912 107:2890 108:1251 109:4257 110:2280 111:4112 112:3162 113:1965 114:2271 115:2319 116:2159 117:3505 118:2954 119:2084 120:2706 121:1555 122:2992 123:2288 124:1652 125:2978 126:126 128:1621 129:977 130:1649 131:2474 132:845 133:472 134:1674 135:613 136:1568 137:1546 138:3321 139:1635 140:1753 141:1727 142:2538 143:2108 144:1763 145:645 146:2212 147:2229 148:2780 149:3136 150:1369 151:2833 152:2327 153:1412 154:9856 155:2296 156:4544 157:2309 158:1540 159:2860 160:3810 161:1958 162:4039 163:2498 164:2038 165:2646 166:1271 167:2307 168:4017 169:864 170:5577 171:1128 172:4675 173:3484 174:882 175:1357 176:3873 177:4823 178:4360 179:2318 180:3058 181:4550 182:4025 183:2838 184:2038 185:21864 186:5788 187:4975 188:4580 189:4519 190:9837 191:1544 192:11484 193:9639 194:7886 195:5819 196:3390 197:3269 198:6281 199:6052 200:8220 201:6384 202:10723 203:10661 204:4797 205:3724 206:4557 207:3999 208:4383 209:5459 210:4764 211:2680 212:5104 213:4139 214:1043 215:47 216:7293 217:3583 218:1701 219:415 220:2196 221:1312 222:937 223:3416 End of report