IPv4 R&E Routing Table Report 23:05 GMT Sat 05 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: 974396 Prefixes after maximum aggregation (per Origin AS): 374760 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 476328 Number of IPv4 prefixes with a valid ROA: 536442 Number of IPv4 prefixes with an invalid ROA: 683 Number of IPv4 prefixes with no ROA: 437271 Total ASes present in the Internet Routing Table: 76597 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65738 Origin ASes announcing only one prefix: 26893 Transit ASes present in the Internet Routing Table: 10859 Transit-only ASes present in the Internet Routing Table: 535 Paths with bogon ASNs present in the IPv4 Routing Table: 20 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: 1060 Number of 32-bit ASNs allocated by the RIRs: 46163 Number of 32-bit ASNs visible in the Routing Table: 38004 Prefixes from 32-bit ASNs in the Routing Table: 199923 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: 457 Number of addresses announced to Internet: 3106993408 Equivalent to 185 /8s, 48 /16s and 245 /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: 320161 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 254970 Total APNIC prefixes after maximum aggregation: 76428 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246716 Unique aggregates announced from the APNIC address blocks: 102604 APNIC Region origin ASes present in the Internet Routing Table: 14521 APNIC Prefixes per ASN: 16.99 APNIC Region origin ASes announcing only one prefix: 4436 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 55 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10055 Number of APNIC addresses announced to Internet: 748551936 Equivalent to 44 /8s, 157 /16s and 255 /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: 287589 Total ARIN prefixes after maximum aggregation: 128534 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288574 Unique aggregates announced from the ARIN address blocks: 137261 ARIN Region origin ASes present in the Internet Routing Table: 19194 ARIN Prefixes per ASN: 15.03 ARIN Region origin ASes announcing only one prefix: 7038 ARIN Region transit ASes present in the Internet Routing Table: 1899 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5166 Number of ARIN addresses announced to Internet: 1349761536 Equivalent to 80 /8s, 115 /16s and 186 /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: 272598 Total RIPE prefixes after maximum aggregation: 133102 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270572 Unique aggregates announced from the RIPE address blocks: 173618 RIPE Region origin ASes present in the Internet Routing Table: 28866 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12061 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: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12350 Number of RIPE addresses announced to Internet: 731845376 Equivalent to 43 /8s, 159 /16s and 19 /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: 123100 Total LACNIC prefixes after maximum aggregation: 29323 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119805 Unique aggregates announced from the LACNIC address blocks: 48831 LACNIC Region origin ASes present in the Internet Routing Table: 11212 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2666 LACNIC Region transit ASes present in the Internet Routing Table: 2459 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: 9163 Number of LACNIC addresses announced to Internet: 171676416 Equivalent to 10 /8s, 59 /16s and 147 /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: 35083 Total AfriNIC prefixes after maximum aggregation: 6729 AfriNIC Deaggregation factor: 5.21 Prefixes being announced from the AfriNIC address blocks: 48272 Unique aggregates announced from the AfriNIC address blocks: 13625 AfriNIC Region origin ASes present in the Internet Routing Table: 1902 AfriNIC Prefixes per ASN: 25.38 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 372 Average AfriNIC Region AS path length visible: 5.4 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: 104923648 Equivalent to 6 /8s, 65 /16s and 2 /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 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4252 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4218 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2173 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 13006 39641 3946 AMAZON-02, US 11492 4686 311 585 CABLEONE, US 7155 3828 286 85 VIASAT-SP-BACKBONE, US 174 3629 8765 951 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3401 3036 184 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2984 1250 2205 AKAMAI-AS, US 396982 2950 3649 467 GOOGLE-CLOUD-PLATFORM, US 36352 2619 216 798 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 7713 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3897 3395 125 AKAMAI-ASN1, NL 9009 3765 325 1961 M247, RO 12389 3072 2303 895 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2083 148 1534 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1523 1852 14 TE-AS TE-AS, EG 62240 1492 98 750 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 11922 3244 585 UNINET, MX 10620 3526 487 971 Telmex Colombia S.A., CO 13999 2512 539 364 Mega Cable, S.A. de C.V., MX 11830 1992 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 1196 371 22 Telefonica del Peru S.A.A., PE 22884 1050 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1049 278 33 Techtel LMDS Comunicaciones Interactivas 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 1703 599 30 RAYA-AS, EG 24863 1631 389 16 LINKdotNET-AS, EG 29571 1571 102 22 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 915 1083 15 MOBINIL, EG 6713 561 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 13006 39641 3946 AMAZON-02, US 8151 11922 3244 585 UNINET, MX 9808 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7713 1714 145 UNI2-AS, ES 7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4686 311 585 CABLEONE, US 9498 4252 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4218 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 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 11922 11337 UNINET, MX 9808 10308 10219 CHINAMOBILE-CN China Mobile Communications Grou 12479 7713 7568 UNI2-AS, ES 7545 6214 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4218 4193 FPT-AS-AP FPT Telecom Company, VN 11492 4686 4101 CABLEONE, US 9498 4252 3976 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 20940 3897 3772 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 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 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 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /12:302 /13:579 /14:1217 /15:2140 /16:13891 /17:8226 /18:13648 /19:24471 /20:43580 /21:51566 /22:111651 /23:101058 /24:601901 /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 6638 7713 UNI2-AS, ES 8151 6125 11922 UNINET, MX 11492 3531 4686 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3828 VIASAT-SP-BACKBONE, US 22773 2536 3401 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2337 13006 AMAZON-02, US 30036 2205 2545 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3526 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) ---------------------------------------------- 1:2333 2:1520 3:614 4:10 5:4598 6:162 7:6 8:1546 9:1 11:172 12:1373 13:351 14:2509 15:351 16:279 17:361 18:918 20:471 21:4 22:188 23:7307 24:2827 25:2 27:2692 29:19 31:3223 32:37 34:83 35:204 36:2398 37:4678 38:8907 39:899 40:154 41:4182 42:1894 43:2540 44:361 45:18436 46:4941 47:289 49:1959 50:1898 51:590 52:1551 54:301 55:876 56:11 57:249 58:2189 59:1239 60:1171 61:2818 62:2890 63:1833 64:5490 65:2175 66:4618 67:3057 68:1106 69:3982 70:1069 71:611 72:2824 74:2796 75:1607 76:612 77:2705 78:1874 79:1729 80:2193 81:2022 82:3109 83:1417 84:1833 85:3399 86:1041 87:2149 88:1278 89:4323 90:775 91:8306 92:2796 93:2875 94:4052 95:4293 96:1433 97:313 98:998 99:641 100:71 101:1397 102:3726 103:32149 104:4796 105:750 106:988 107:2610 108:1198 109:4101 110:2230 111:3313 112:2039 113:1804 114:1967 115:2127 116:2030 117:2737 118:2877 119:1943 120:1870 121:1359 122:2744 123:2160 124:1610 125:2854 126:88 128:1561 129:955 130:1262 131:1879 132:776 133:451 134:1514 135:330 136:1299 137:1103 138:2860 139:1609 140:1565 141:1486 142:1836 143:1645 144:1066 145:514 146:2153 147:2100 148:2642 149:2896 150:1242 151:1739 152:2097 153:503 154:7909 155:1626 156:3215 157:1894 158:1269 159:2426 160:3559 161:1886 162:3699 163:1972 164:1694 165:2202 166:1438 167:1872 168:4020 169:784 170:5072 171:1002 172:4461 173:3221 174:909 175:1289 176:3716 177:4674 178:3784 179:2294 180:2573 181:4045 182:3370 183:2032 184:2139 185:21481 186:5091 187:4388 188:4196 189:4158 190:9619 191:1460 192:11162 193:9400 194:7778 195:5501 196:3228 197:3767 198:6042 199:8417 200:8048 201:6292 202:10322 203:10517 204:4523 205:3632 206:4567 207:3436 208:4197 209:5145 210:4500 211:2534 212:4500 213:3749 214:1051 215:48 216:6591 217:3084 218:1329 219:377 220:2087 221:1070 222:712 223:2319 End of report