IPv4 R&E Routing Table Report 23:05 GMT Sun 16 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: 974247 Prefixes after maximum aggregation (per Origin AS): 373633 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476250 Number of IPv4 prefixes with a valid ROA: 534801 Number of IPv4 prefixes with an invalid ROA: 1014 Number of IPv4 prefixes with no ROA: 438432 Total ASes present in the Internet Routing Table: 76538 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65674 Origin ASes announcing only one prefix: 26853 Transit ASes present in the Internet Routing Table: 10864 Transit-only ASes present in the Internet Routing Table: 530 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: 102 Max AS path prepend of ASN (150995) 100 Prefixes from unregistered ASNs in the Routing Table: 1026 Number of instances of unregistered ASNs: 1030 Number of 32-bit ASNs allocated by the RIRs: 46137 Number of 32-bit ASNs visible in the Routing Table: 37914 Prefixes from 32-bit ASNs in the Routing Table: 199404 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: 499 Number of addresses announced to Internet: 3110681088 Equivalent to 185 /8s, 105 /16s and 58 /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: 319639 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255213 Total APNIC prefixes after maximum aggregation: 76174 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247023 Unique aggregates announced from the APNIC address blocks: 102683 APNIC Region origin ASes present in the Internet Routing Table: 14492 APNIC Prefixes per ASN: 17.05 APNIC Region origin ASes announcing only one prefix: 4407 APNIC Region transit ASes present in the Internet Routing Table: 1954 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 102 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10019 Number of APNIC addresses announced to Internet: 749296640 Equivalent to 44 /8s, 169 /16s and 92 /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: 287847 Total ARIN prefixes after maximum aggregation: 128227 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288645 Unique aggregates announced from the ARIN address blocks: 136597 ARIN Region origin ASes present in the Internet Routing Table: 19181 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7026 ARIN Region transit ASes present in the Internet Routing Table: 1909 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: 5159 Number of ARIN addresses announced to Internet: 1352524288 Equivalent to 80 /8s, 157 /16s and 226 /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: 271933 Total RIPE prefixes after maximum aggregation: 132584 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270052 Unique aggregates announced from the RIPE address blocks: 173284 RIPE Region origin ASes present in the Internet Routing Table: 28859 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12070 RIPE Region transit ASes present in the Internet Routing Table: 3976 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: 12315 Number of RIPE addresses announced to Internet: 732190720 Equivalent to 43 /8s, 164 /16s and 88 /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: 123194 Total LACNIC prefixes after maximum aggregation: 29239 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 119966 Unique aggregates announced from the LACNIC address blocks: 48805 LACNIC Region origin ASes present in the Internet Routing Table: 11200 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2477 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: 9154 Number of LACNIC addresses announced to Internet: 171525120 Equivalent to 10 /8s, 57 /16s and 68 /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: 35034 Total AfriNIC prefixes after maximum aggregation: 6772 AfriNIC Deaggregation factor: 5.17 Prefixes being announced from the AfriNIC address blocks: 48062 Unique aggregates announced from the AfriNIC address blocks: 14468 AfriNIC Region origin ASes present in the Internet Routing Table: 1903 AfriNIC Prefixes per ASN: 25.26 AfriNIC Region origin ASes announcing only one prefix: 691 AfriNIC Region transit ASes present in the Internet Routing Table: 370 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: 1267 Number of AfriNIC addresses announced to Internet: 104899584 Equivalent to 6 /8s, 64 /16s and 164 /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 6213 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4384 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4265 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 102 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 2171 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 12918 39643 3957 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4174 286 83 VIASAT-SP-BACKBONE, US 174 3678 8765 941 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 396982 2944 3660 457 GOOGLE-CLOUD-PLATFORM, US 16625 2936 1237 2167 AKAMAI-AS, US 30036 2546 350 413 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 7755 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3889 3395 126 AKAMAI-ASN1, NL 9009 3753 321 1937 M247, RO 12389 2983 2303 889 ROSTELECOM-AS, RU 34984 2370 361 582 TELLCOM-AS, TR 212238 2042 147 1507 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1551 1852 14 TE-AS TE-AS, EG 62240 1484 98 743 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 11821 3241 582 UNINET, MX 10620 3524 487 971 Telmex Colombia S.A., CO 13999 2507 539 368 Mega Cable, S.A. de C.V., MX 11830 1993 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 11664 1156 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1070 359 174 Axtel, S.A.B. de C.V., MX 22884 1049 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1562 103 64 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 561 1861 35 IAM-AS, MA 36914 537 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 12918 39643 3957 AMAZON-02, US 8151 11821 3241 582 UNINET, MX 9808 10323 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7755 1714 145 UNI2-AS, ES 7545 6213 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 18403 4384 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4265 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 11821 11239 UNINET, MX 9808 10323 10235 CHINAMOBILE-CN China Mobile Communications Grou 12479 7755 7610 UNI2-AS, ES 7545 6213 5555 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4384 4359 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4675 4090 CABLEONE, US 9498 4265 3989 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3886 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 /15:2144 /16:13929 /17:8237 /18:13651 /19:24460 /20:43633 /21:51531 /22:111549 /23:100784 /24:602062 /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 6693 7755 UNI2-AS, ES 8151 6024 11821 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 2342 12918 AMAZON-02, US 30036 2207 2546 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) ---------------------------------------------- 1:2348 2:1505 3:593 4:10 5:4565 6:162 7:6 8:1549 9:1 11:172 12:1375 13:347 14:2511 15:350 16:279 17:361 18:920 20:462 21:4 22:188 23:7282 24:3022 25:2 27:2699 29:19 31:3197 32:36 34:82 35:203 36:2402 37:4615 38:8952 39:899 40:154 41:4246 42:1962 43:2542 44:355 45:18359 46:5010 47:287 49:1987 50:1885 51:591 52:1555 54:301 55:1059 56:9 57:243 58:2188 59:1248 60:1165 61:2819 62:2891 63:1827 64:5486 65:2163 66:4591 67:3009 68:1113 69:3947 70:1110 71:614 72:2852 74:2778 75:1654 76:611 77:2692 78:1854 79:1725 80:2191 81:2016 82:2784 83:1390 84:1807 85:3362 86:1035 87:2155 88:1281 89:4330 90:783 91:8314 92:2789 93:2891 94:3906 95:4255 96:1413 97:317 98:984 99:738 100:71 101:1389 102:3644 103:32254 104:4818 105:733 106:999 107:2599 108:1202 109:4120 110:2230 111:3324 112:2038 113:1799 114:1939 115:2119 116:2037 117:2754 118:2879 119:1943 120:1876 121:1358 122:2726 123:2162 124:1603 125:2886 126:88 128:1544 129:951 130:1262 131:1863 132:780 133:451 134:1529 135:330 136:1283 137:1108 138:2875 139:1616 140:1551 141:1478 142:1801 143:1645 144:1060 145:480 146:2150 147:2090 148:2599 149:2883 150:1242 151:2113 152:2098 153:504 154:7838 155:1622 156:3289 157:1909 158:1269 159:2425 160:3548 161:1934 162:3679 163:1898 164:1698 165:2186 166:1394 167:1873 168:4036 169:787 170:5091 171:1001 172:4424 173:3221 174:910 175:1276 176:3668 177:4751 178:3811 179:2313 180:2570 181:4034 182:3367 183:2071 184:2292 185:21465 186:5123 187:4363 188:4208 189:4158 190:9654 191:1493 192:11137 193:9405 194:7758 195:5516 196:3261 197:3750 198:6062 199:8372 200:8054 201:6294 202:10332 203:10505 204:4507 205:3613 206:4552 207:3438 208:4169 209:5152 210:4510 211:2527 212:4503 213:3720 214:1053 215:42 216:6578 217:3090 218:1326 219:375 220:2105 221:1053 222:719 223:2318 End of report