IPv4 R&E Routing Table Report 23:05 GMT Thu 13 Mar, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 974309 Prefixes after maximum aggregation (per Origin AS): 373659 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476737 Number of IPv4 prefixes with a valid ROA: 534780 Number of IPv4 prefixes with an invalid ROA: 1069 Number of IPv4 prefixes with no ROA: 438460 Total ASes present in the Internet Routing Table: 76523 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65670 Origin ASes announcing only one prefix: 26863 Transit ASes present in the Internet Routing Table: 10853 Transit-only ASes present in the Internet Routing Table: 525 Paths with bogon ASNs present in the IPv4 Routing Table: 12 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1021 Number of instances of unregistered ASNs: 1025 Number of 32-bit ASNs allocated by the RIRs: 46137 Number of 32-bit ASNs visible in the Routing Table: 37901 Prefixes from 32-bit ASNs in the Routing Table: 199138 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 509 Number of addresses announced to Internet: 3110409216 Equivalent to 185 /8s, 101 /16s and 20 /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: 319555 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255219 Total APNIC prefixes after maximum aggregation: 76178 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247038 Unique aggregates announced from the APNIC address blocks: 102660 APNIC Region origin ASes present in the Internet Routing Table: 14495 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4415 APNIC Region transit ASes present in the Internet Routing Table: 1949 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10022 Number of APNIC addresses announced to Internet: 749288192 Equivalent to 44 /8s, 169 /16s and 59 /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: 287984 Total ARIN prefixes after maximum aggregation: 128213 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288668 Unique aggregates announced from the ARIN address blocks: 136600 ARIN Region origin ASes present in the Internet Routing Table: 19178 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7015 ARIN Region transit ASes present in the Internet Routing Table: 1910 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5156 Number of ARIN addresses announced to Internet: 1351107584 Equivalent to 80 /8s, 136 /16s and 68 /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: 271849 Total RIPE prefixes after maximum aggregation: 132494 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270002 Unique aggregates announced from the RIPE address blocks: 173257 RIPE Region origin ASes present in the Internet Routing Table: 28846 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12066 RIPE Region transit ASes present in the Internet Routing Table: 3970 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12301 Number of RIPE addresses announced to Internet: 732152576 Equivalent to 43 /8s, 163 /16s and 195 /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: 123116 Total LACNIC prefixes after maximum aggregation: 29329 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119983 Unique aggregates announced from the LACNIC address blocks: 48803 LACNIC Region origin ASes present in the Internet Routing Table: 11194 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2668 LACNIC Region transit ASes present in the Internet Routing Table: 2476 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9152 Number of LACNIC addresses announced to Internet: 172753664 Equivalent to 10 /8s, 76 /16s and 3 /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: 35120 Total AfriNIC prefixes after maximum aggregation: 6811 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 48109 Unique aggregates announced from the AfriNIC address blocks: 14995 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.21 AfriNIC Region origin ASes announcing only one prefix: 699 AfriNIC Region transit ASes present in the Internet Routing Table: 371 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1270 Number of AfriNIC addresses announced to Internet: 104857600 Equivalent to 6 /8s, 64 /16s and 0 /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 10323 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6212 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4393 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4257 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3689 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2841 847 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2172 434 197 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12923 39642 3955 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4174 286 83 VIASAT-SP-BACKBONE, US 174 3690 8767 955 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3380 3035 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 16625 2959 1247 2177 AKAMAI-AS, US 396982 2944 3660 457 GOOGLE-CLOUD-PLATFORM, US 30036 2545 350 417 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7754 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3904 3395 126 AKAMAI-ASN1, NL 9009 3753 321 1936 M247, RO 12389 3000 2303 889 ROSTELECOM-AS, RU 34984 2370 361 582 TELLCOM-AS, TR 212238 2039 146 1505 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1551 1852 14 TE-AS TE-AS, EG 62240 1485 98 744 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11817 3242 587 UNINET, MX 10620 3524 487 971 Telmex Colombia S.A., CO 13999 2501 538 370 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 6503 1089 359 174 Axtel, S.A.B. de C.V., MX 22884 1048 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1020 278 33 Techtel LMDS Comunicaciones Interactivas Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1683 599 30 RAYA-AS, EG 24863 1619 389 16 LINKdotNET-AS, EG 29571 1572 99 95 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 855 1083 15 MOBINIL, EG 6713 560 1861 35 IAM-AS, MA 36914 548 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12923 39642 3955 AMAZON-02, US 8151 11817 3242 587 UNINET, MX 9808 10323 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7754 1714 145 UNI2-AS, ES 7545 6212 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 18403 4393 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4257 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7155 4174 286 83 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11817 11230 UNINET, MX 9808 10323 10235 CHINAMOBILE-CN China Mobile Communications Grou 12479 7754 7609 UNI2-AS, ES 7545 6212 5554 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4393 4368 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4675 4090 CABLEONE, US 9498 4257 3981 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 3896 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/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/Singapore/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: 3491 CONSOLE-CONNECT-ASN, US 23.138.40.0/22 Origin: 964 IONSWITCH-NW, US 23.138.40.0/22 Transit: 20055 AS-WHOLESAIL, US 23.138.41.0/24 Origin: 964 IONSWITCH-NW, US 23.138.41.0/24 Transit: 20055 AS-WHOLESAIL, 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:16 /10:42 /11:92 /12:304 /13:583 /14:1214 /15:2143 /16:13927 /17:8241 /18:13647 /19:24446 /20:43662 /21:51549 /22:111594 /23:100893 /24:601940 /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 6692 7754 UNI2-AS, ES 8151 6019 11817 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3121 4174 VIASAT-SP-BACKBONE, US 22773 2517 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2330 12923 AMAZON-02, US 30036 2206 2545 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3524 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2346 2:1504 3:592 4:10 5:4562 6:162 7:6 8:1552 9:1 11:172 12:1375 13:348 14:2509 15:349 16:279 17:360 18:923 20:462 21:4 22:188 23:7285 24:3021 25:2 27:2699 29:19 31:3199 32:35 34:82 35:203 36:2401 37:4607 38:8955 39:900 40:158 41:4247 42:1976 43:2540 44:354 45:18375 46:5011 47:288 49:1990 50:1884 51:591 52:1555 54:300 55:1071 56:9 57:242 58:2188 59:1240 60:1165 61:2821 62:2896 63:1827 64:5488 65:2166 66:4594 67:3009 68:1114 69:3949 70:1109 71:614 72:2856 74:2773 75:1653 76:613 77:2686 78:1855 79:1732 80:2187 81:2010 82:2781 83:1390 84:1807 85:3357 86:1035 87:2156 88:1279 89:4328 90:783 91:8299 92:2786 93:2892 94:3904 95:4254 96:1412 97:317 98:985 99:738 100:71 101:1389 102:3618 103:32254 104:4814 105:736 106:999 107:2584 108:1198 109:4115 110:2230 111:3322 112:2037 113:1798 114:1944 115:2118 116:2038 117:2755 118:2876 119:1945 120:1876 121:1357 122:2735 123:2164 124:1607 125:2886 126:87 128:1538 129:957 130:1263 131:1855 132:775 133:451 134:1528 135:330 136:1285 137:1106 138:2876 139:1615 140:1556 141:1472 142:1821 143:1637 144:1064 145:479 146:2146 147:2089 148:2594 149:2881 150:1242 151:2161 152:2100 153:504 154:7849 155:1612 156:3283 157:1908 158:1269 159:2425 160:3542 161:1934 162:3676 163:1882 164:1698 165:2188 166:1396 167:1878 168:4043 169:786 170:5089 171:1000 172:4431 173:3221 174:910 175:1277 176:3676 177:4728 178:3804 179:2289 180:2559 181:4038 182:3368 183:2075 184:2300 185:21466 186:5116 187:4355 188:4207 189:4141 190:9626 191:1489 192:11136 193:9397 194:7754 195:5517 196:3265 197:3751 198:6074 199:8377 200:8029 201:6296 202:10349 203:10519 204:4498 205:3596 206:4552 207:3438 208:4166 209:5150 210:4508 211:2527 212:4499 213:3721 214:1059 215:42 216:6580 217:3082 218:1325 219:374 220:2105 221:1053 222:719 223:2319 End of report