IPv4 R&E Routing Table Report 23:05 GMT Thu 22 May, 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: 981621 Prefixes after maximum aggregation (per Origin AS): 378672 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481463 Number of IPv4 prefixes with a valid ROA: 545368 Number of IPv4 prefixes with an invalid ROA: 707 Number of IPv4 prefixes with no ROA: 435546 Total ASes present in the Internet Routing Table: 76716 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65774 Origin ASes announcing only one prefix: 26888 Transit ASes present in the Internet Routing Table: 10942 Transit-only ASes present in the Internet Routing Table: 538 Paths with bogon ASNs present in the IPv4 Routing Table: 28 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 999 Number of instances of unregistered ASNs: 1016 Number of 32-bit ASNs allocated by the RIRs: 46491 Number of 32-bit ASNs visible in the Routing Table: 38210 Prefixes from 32-bit ASNs in the Routing Table: 203740 Number of bogon 32-bit ASNs visible in the Routing Table: 44 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 452 Number of addresses announced to Internet: 3109282560 Equivalent to 185 /8s, 83 /16s and 227 /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: 320245 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258891 Total APNIC prefixes after maximum aggregation: 77182 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 250000 Unique aggregates announced from the APNIC address blocks: 104242 APNIC Region origin ASes present in the Internet Routing Table: 14573 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4402 APNIC Region transit ASes present in the Internet Routing Table: 1958 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10112 Number of APNIC addresses announced to Internet: 748678144 Equivalent to 44 /8s, 159 /16s and 236 /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: 289276 Total ARIN prefixes after maximum aggregation: 130772 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289868 Unique aggregates announced from the ARIN address blocks: 139510 ARIN Region origin ASes present in the Internet Routing Table: 19206 ARIN Prefixes per ASN: 15.09 ARIN Region origin ASes announcing only one prefix: 7046 ARIN Region transit ASes present in the Internet Routing Table: 1925 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5206 Number of ARIN addresses announced to Internet: 1352615936 Equivalent to 80 /8s, 159 /16s and 72 /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: 273046 Total RIPE prefixes after maximum aggregation: 133975 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271352 Unique aggregates announced from the RIPE address blocks: 174758 RIPE Region origin ASes present in the Internet Routing Table: 28895 RIPE Prefixes per ASN: 9.39 RIPE Region origin ASes announcing only one prefix: 12068 RIPE Region transit ASes present in the Internet Routing Table: 3956 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12432 Number of RIPE addresses announced to Internet: 731385600 Equivalent to 43 /8s, 152 /16s and 15 /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: 124011 Total LACNIC prefixes after maximum aggregation: 29494 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120422 Unique aggregates announced from the LACNIC address blocks: 48895 LACNIC Region origin ASes present in the Internet Routing Table: 11230 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2678 LACNIC Region transit ASes present in the Internet Routing Table: 2534 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9185 Number of LACNIC addresses announced to Internet: 171742464 Equivalent to 10 /8s, 60 /16s and 149 /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: 35398 Total AfriNIC prefixes after maximum aggregation: 6630 AfriNIC Deaggregation factor: 5.34 Prefixes being announced from the AfriNIC address blocks: 49527 Unique aggregates announced from the AfriNIC address blocks: 13652 AfriNIC Region origin ASes present in the Internet Routing Table: 1910 AfriNIC Prefixes per ASN: 25.93 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1275 Number of AfriNIC addresses announced to Internet: 104653312 Equivalent to 6 /8s, 60 /16s and 226 /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 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4432 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4359 534 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3903 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2867 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2173 434 193 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 13455 40824 5092 AMAZON-02, US 11492 4734 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3422 8746 883 COGENT-174, US 22773 3349 3017 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3168 3852 417 GOOGLE-CLOUD-PLATFORM, US 16625 3023 1262 2227 AKAMAI-AS, US 36352 2827 231 858 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 7701 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3954 3395 123 AKAMAI-ASN1, NL 9009 3823 333 2041 M247, RO 12389 3072 2305 888 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 581 TELLCOM-AS, TR 212238 2150 151 1581 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1573 1852 14 TE-AS TE-AS, EG 62240 1422 94 737 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 12149 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, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 11664 1112 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1059 67 378 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/Singapore/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 1651 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 548 82 3 KENET-AS, KE 15399 545 57 60 WANANCHI-, 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 13455 40824 5092 AMAZON-02, US 8151 12149 3251 581 UNINET, MX 9808 11086 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7701 1714 148 UNI2-AS, ES 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4734 314 586 CABLEONE, US 18403 4432 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4359 534 301 BBIL-AP BHARTI Airtel Ltd., IN 20940 3954 3395 123 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 12149 11568 UNINET, MX 9808 11086 10990 CHINAMOBILE-CN China Mobile Communications Grou 12479 7701 7553 UNI2-AS, ES 7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4432 4407 FPT-AS-AP FPT Telecom Company, VN 11492 4734 4148 CABLEONE, US 9498 4359 4058 BBIL-AP BHARTI Airtel Ltd., IN 7552 3903 3877 VIETEL-AS-AP Viettel Group, VN 20940 3954 3831 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 23.140.216.0/24 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/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 /11:92 /12:299 /13:580 /14:1213 /15:2141 /16:13867 /17:8199 /18:13603 /19:24442 /20:43799 /21:51432 /22:111516 /23:101808 /24:608557 /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 6618 7701 UNI2-AS, ES 8151 6343 12149 UNINET, MX 11492 3531 4734 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2499 3349 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2319 13455 AMAZON-02, US 30036 2229 2570 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3499 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) ---------------------------------------------- 1:2378 2:1497 3:779 4:9 5:4701 6:163 7:6 8:1580 9:1 11:172 12:1362 13:432 14:2520 15:353 16:285 17:376 18:920 20:528 21:4 22:188 23:7520 24:2747 25:2 27:2762 29:19 31:3264 32:36 33:1 34:83 35:207 36:2969 37:4619 38:9144 39:909 40:169 41:4222 42:1971 43:2628 44:383 45:18657 46:5051 47:302 49:1935 50:1884 51:590 52:1561 54:314 55:1096 56:11 57:258 58:2245 59:1301 60:1168 61:2828 62:2917 63:1800 64:5444 65:2178 66:4603 67:3053 68:1122 69:3826 70:1065 71:625 72:2814 74:2759 75:1507 76:615 77:2702 78:1887 79:1478 80:2190 81:2074 82:3109 83:1435 84:1860 85:3416 86:1067 87:2125 88:1286 89:4376 90:775 91:8354 92:2697 93:2891 94:4056 95:4305 96:1418 97:312 98:979 99:686 100:71 101:1412 102:3865 103:32829 104:5043 105:767 106:1036 107:2649 108:1212 109:3942 110:2254 111:3330 112:2095 113:1813 114:1973 115:2162 116:2067 117:2534 118:2871 119:1970 120:1949 121:1375 122:2759 123:2177 124:1635 125:2885 126:91 128:1582 129:954 130:1299 131:1964 132:774 133:451 134:1533 135:332 136:1345 137:1119 138:2903 139:1597 140:1583 141:1500 142:1900 143:1756 144:1119 145:503 146:2177 147:2109 148:2703 149:2883 150:1234 151:1928 152:2084 153:498 154:8046 155:1968 156:3192 157:1910 158:1322 159:2447 160:3830 161:1875 162:3745 163:2159 164:1693 165:2203 166:1477 167:1892 168:4298 169:790 170:5086 171:1006 172:4438 173:3291 174:915 175:1304 176:3698 177:4748 178:3644 179:2323 180:2764 181:4065 182:3440 183:2152 184:2051 185:21533 186:5160 187:4490 188:4259 189:4333 190:9540 191:1505 192:11237 193:9458 194:7771 195:5522 196:3225 197:3670 198:6060 199:8501 200:8063 201:6353 202:10291 203:10606 204:4521 205:3601 206:4433 207:3455 208:4235 209:5165 210:4544 211:2545 212:4538 213:3713 214:1019 215:48 216:6710 217:3127 218:1345 219:396 220:2091 221:1094 222:721 223:2395 End of report