IPv4 R&E Routing Table Report 23:05 GMT Sat 19 Apr, 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: 975553 Prefixes after maximum aggregation (per Origin AS): 375749 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 478236 Number of IPv4 prefixes with a valid ROA: 537969 Number of IPv4 prefixes with an invalid ROA: 689 Number of IPv4 prefixes with no ROA: 436895 Total ASes present in the Internet Routing Table: 76697 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65813 Origin ASes announcing only one prefix: 26901 Transit ASes present in the Internet Routing Table: 10884 Transit-only ASes present in the Internet Routing Table: 534 Paths with bogon ASNs present in the IPv4 Routing Table: 27 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1056 Number of instances of unregistered ASNs: 1062 Number of 32-bit ASNs allocated by the RIRs: 46245 Number of 32-bit ASNs visible in the Routing Table: 38106 Prefixes from 32-bit ASNs in the Routing Table: 200582 Number of bogon 32-bit ASNs visible in the Routing Table: 24 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 453 Number of addresses announced to Internet: 3106451456 Equivalent to 185 /8s, 40 /16s and 176 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 319604 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255334 Total APNIC prefixes after maximum aggregation: 76547 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247061 Unique aggregates announced from the APNIC address blocks: 102867 APNIC Region origin ASes present in the Internet Routing Table: 14557 APNIC Prefixes per ASN: 16.97 APNIC Region origin ASes announcing only one prefix: 4431 APNIC Region transit ASes present in the Internet Routing Table: 1973 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10085 Number of APNIC addresses announced to Internet: 748308224 Equivalent to 44 /8s, 154 /16s and 71 /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: 287692 Total ARIN prefixes after maximum aggregation: 129072 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288613 Unique aggregates announced from the ARIN address blocks: 137946 ARIN Region origin ASes present in the Internet Routing Table: 19217 ARIN Prefixes per ASN: 15.02 ARIN Region origin ASes announcing only one prefix: 7038 ARIN Region transit ASes present in the Internet Routing Table: 1906 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5183 Number of ARIN addresses announced to Internet: 1349357056 Equivalent to 80 /8s, 109 /16s and 142 /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: 272818 Total RIPE prefixes after maximum aggregation: 133374 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270829 Unique aggregates announced from the RIPE address blocks: 173862 RIPE Region origin ASes present in the Internet Routing Table: 28887 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12059 RIPE Region transit ASes present in the Internet Routing Table: 3965 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12387 Number of RIPE addresses announced to Internet: 731846912 Equivalent to 43 /8s, 159 /16s and 25 /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: 123296 Total LACNIC prefixes after maximum aggregation: 29366 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119913 Unique aggregates announced from the LACNIC address blocks: 48885 LACNIC Region origin ASes present in the Internet Routing Table: 11226 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2679 LACNIC Region transit ASes present in the Internet Routing Table: 2471 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9176 Number of LACNIC addresses announced to Internet: 171746560 Equivalent to 10 /8s, 60 /16s and 165 /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: 35357 Total AfriNIC prefixes after maximum aggregation: 6756 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 48684 Unique aggregates announced from the AfriNIC address blocks: 14298 AfriNIC Region origin ASes present in the Internet Routing Table: 1911 AfriNIC Prefixes per ASN: 25.48 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 373 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1275 Number of AfriNIC addresses announced to Internet: 104972288 Equivalent to 6 /8s, 65 /16s and 192 /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 10345 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4268 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4263 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3924 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3670 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2856 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2176 11524 637 KIXS-AS-KR Korea Telecom, KR 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 13214 39708 4107 AMAZON-02, US 11492 4694 311 587 CABLEONE, US 7155 3829 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3534 8760 923 COGENT-174, US 22773 3399 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2993 1251 2210 AKAMAI-AS, US 396982 2957 3650 468 GOOGLE-CLOUD-PLATFORM, US 36352 2708 222 836 AS-COLOCROSSING, 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 7703 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3930 3395 125 AKAMAI-ASN1, NL 9009 3770 325 1959 M247, RO 12389 3068 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2361 360 584 TELLCOM-AS, TR 212238 2098 148 1543 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1595 1852 14 TE-AS TE-AS, EG 62240 1444 95 746 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 11957 3243 591 UNINET, MX 10620 3522 486 992 Telmex Colombia S.A., CO 13999 2511 539 364 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1356 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1190 371 22 Telefonica del Peru S.A.A., PE 11664 1058 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1052 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1040 374 163 Axtel, S.A.B. de C.V., MX 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 1743 607 31 RAYA-AS, EG 24863 1648 389 16 LINKdotNET-AS, EG 29571 1588 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 6713 562 1861 35 IAM-AS, MA 36914 535 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 13214 39708 4107 AMAZON-02, US 8151 11957 3243 591 UNINET, MX 9808 10345 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7703 1714 145 UNI2-AS, ES 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4694 311 587 CABLEONE, US 9498 4268 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4263 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3930 3395 125 AKAMAI-ASN1, NL 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 11957 11366 UNINET, MX 9808 10345 10256 CHINAMOBILE-CN China Mobile Communications Grou 12479 7703 7558 UNI2-AS, ES 7545 6214 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4263 4238 FPT-AS-AP FPT Telecom Company, VN 11492 4694 4107 CABLEONE, US 9498 4268 3992 BBIL-AP BHARTI Airtel Ltd., IN 7552 3924 3898 VIETEL-AS-AP Viettel Group, VN 20940 3930 3805 AKAMAI-ASN1, NL 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 23.138.4.0/24 Origin: 16509 AMAZON-02, US 23.138.4.0/24 Transit: 4755 TATACOMM-AS TATA Communications formerly 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 /10:41 /11:93 /12:300 /13:581 /14:1215 /15:2136 /16:13882 /17:8231 /18:13659 /19:24465 /20:43587 /21:51490 /22:111610 /23:101048 /24:603183 /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 6624 7703 UNI2-AS, ES 8151 6163 11957 UNINET, MX 11492 3531 4694 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3829 VIASAT-SP-BACKBONE, US 22773 2535 3399 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2354 13214 AMAZON-02, US 30036 2218 2558 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3522 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 2:1515 3:617 4:10 5:4620 6:163 7:6 8:1557 9:1 11:172 12:1371 13:353 14:2514 15:352 16:283 17:367 18:923 20:512 21:4 22:188 23:7420 24:2749 25:2 27:2726 29:19 31:3225 32:36 34:83 35:203 36:2397 37:4647 38:8898 39:906 40:166 41:4223 42:1909 43:2553 44:376 45:18526 46:4991 47:290 49:1920 50:1888 51:590 52:1555 54:299 55:1085 56:11 57:253 58:2201 59:1259 60:1171 61:2814 62:2925 63:1822 64:5477 65:2186 66:4592 67:3054 68:1113 69:3815 70:1063 71:615 72:2831 74:2778 75:1589 76:613 77:2742 78:1874 79:1748 80:2195 81:2039 82:3179 83:1429 84:1843 85:3407 86:1048 87:2142 88:1261 89:4320 90:784 91:8309 92:2782 93:2886 94:4069 95:4340 96:1392 97:313 98:996 99:643 100:72 101:1385 102:3741 103:32164 104:4817 105:755 106:984 107:2619 108:1203 109:4079 110:2233 111:3351 112:2047 113:1799 114:1967 115:2166 116:2028 117:2738 118:2890 119:1943 120:1873 121:1362 122:2745 123:2163 124:1608 125:2858 126:91 128:1550 129:952 130:1271 131:1905 132:778 133:451 134:1525 135:331 136:1303 137:1106 138:2880 139:1606 140:1576 141:1491 142:1902 143:1640 144:1081 145:513 146:2147 147:2110 148:2661 149:2910 150:1245 151:1756 152:2098 153:501 154:8030 155:1617 156:3191 157:1889 158:1287 159:2433 160:3580 161:1899 162:3739 163:2059 164:1697 165:2196 166:1443 167:1879 168:4040 169:786 170:5055 171:1003 172:4481 173:3234 174:903 175:1296 176:3672 177:4651 178:3740 179:2278 180:2582 181:4062 182:3366 183:2048 184:2082 185:21497 186:5062 187:4404 188:4199 189:4175 190:9609 191:1475 192:11217 193:9429 194:7762 195:5503 196:3290 197:3704 198:6052 199:8448 200:8082 201:6295 202:10312 203:10528 204:4515 205:3635 206:4576 207:3439 208:4187 209:5134 210:4512 211:2531 212:4510 213:3759 214:1026 215:48 216:6593 217:3120 218:1333 219:377 220:2084 221:1057 222:714 223:2323 End of report