IPv4 R&E Routing Table Report 23:05 GMT Sat 08 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: 973481 Prefixes after maximum aggregation (per Origin AS): 373161 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476426 Number of IPv4 prefixes with a valid ROA: 534174 Number of IPv4 prefixes with an invalid ROA: 1032 Number of IPv4 prefixes with no ROA: 438275 Total ASes present in the Internet Routing Table: 76502 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65665 Origin ASes announcing only one prefix: 26879 Transit ASes present in the Internet Routing Table: 10837 Transit-only ASes present in the Internet Routing Table: 529 Paths with bogon ASNs present in the IPv4 Routing Table: 16 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: 973 Number of instances of unregistered ASNs: 992 Number of 32-bit ASNs allocated by the RIRs: 46184 Number of 32-bit ASNs visible in the Routing Table: 37861 Prefixes from 32-bit ASNs in the Routing Table: 198895 Number of bogon 32-bit ASNs visible in the Routing Table: 50 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 459 Number of addresses announced to Internet: 3110719488 Equivalent to 185 /8s, 105 /16s and 208 /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: 319579 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255198 Total APNIC prefixes after maximum aggregation: 76109 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247006 Unique aggregates announced from the APNIC address blocks: 102615 APNIC Region origin ASes present in the Internet Routing Table: 14485 APNIC Prefixes per ASN: 17.05 APNIC Region origin ASes announcing only one prefix: 4415 APNIC Region transit ASes present in the Internet Routing Table: 1950 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10005 Number of APNIC addresses announced to Internet: 749398272 Equivalent to 44 /8s, 170 /16s and 233 /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: 287298 Total ARIN prefixes after maximum aggregation: 128042 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288092 Unique aggregates announced from the ARIN address blocks: 136521 ARIN Region origin ASes present in the Internet Routing Table: 19187 ARIN Prefixes per ASN: 15.01 ARIN Region origin ASes announcing only one prefix: 7026 ARIN Region transit ASes present in the Internet Routing Table: 1913 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: 5155 Number of ARIN addresses announced to Internet: 1351035904 Equivalent to 80 /8s, 135 /16s and 44 /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: 271813 Total RIPE prefixes after maximum aggregation: 132392 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 269868 Unique aggregates announced from the RIPE address blocks: 172812 RIPE Region origin ASes present in the Internet Routing Table: 28839 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12077 RIPE Region transit ASes present in the Internet Routing Table: 3958 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: 12286 Number of RIPE addresses announced to Internet: 732766464 Equivalent to 43 /8s, 173 /16s and 33 /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: 123079 Total LACNIC prefixes after maximum aggregation: 29179 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 119949 Unique aggregates announced from the LACNIC address blocks: 48806 LACNIC Region origin ASes present in the Internet Routing Table: 11195 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2473 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: 9143 Number of LACNIC addresses announced to Internet: 172753920 Equivalent to 10 /8s, 76 /16s and 4 /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: 6832 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 48107 Unique aggregates announced from the AfriNIC address blocks: 15276 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: 698 AfriNIC Region transit ASes present in the Internet Routing Table: 373 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: 1272 Number of AfriNIC addresses announced to Internet: 104532992 Equivalent to 6 /8s, 59 /16s and 12 /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 10324 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6211 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4414 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4245 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3688 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2844 850 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2169 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 12947 39645 3926 AMAZON-02, US 11492 4671 310 587 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3474 8768 962 COGENT-174, US 22773 3377 3035 178 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 396982 2944 3660 457 GOOGLE-CLOUD-PLATFORM, US 16625 2943 1246 2172 AKAMAI-AS, US 30036 2557 353 404 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 7769 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3898 3395 126 AKAMAI-ASN1, NL 9009 3763 322 1940 M247, RO 12389 2977 2303 889 ROSTELECOM-AS, RU 34984 2369 361 581 TELLCOM-AS, TR 212238 2028 146 1497 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1492 1852 14 TE-AS TE-AS, EG 62240 1487 98 746 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 11791 3236 591 UNINET, MX 10620 3544 492 962 Telmex Colombia S.A., CO 13999 2505 539 374 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1328 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1203 371 22 Telefonica del Peru S.A.A., PE 11664 1167 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1109 374 163 Axtel, S.A.B. de C.V., MX 22884 1047 68 372 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 1682 599 30 RAYA-AS, EG 24863 1618 389 16 LINKdotNET-AS, EG 29571 1578 100 104 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1022 523 45 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 851 1083 15 MOBINIL, EG 6713 557 1861 35 IAM-AS, MA 36914 540 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 12947 39645 3926 AMAZON-02, US 8151 11791 3236 591 UNINET, MX 9808 10324 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7769 1714 145 UNI2-AS, ES 7545 6211 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4671 310 587 CABLEONE, US 18403 4414 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4245 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7155 4175 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 11791 11200 UNINET, MX 9808 10324 10236 CHINAMOBILE-CN China Mobile Communications Grou 12479 7769 7624 UNI2-AS, ES 7545 6211 5555 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4414 4389 FPT-AS-AP FPT Telecom Company, VN 7155 4175 4092 VIASAT-SP-BACKBONE, US 11492 4671 4084 CABLEONE, US 9498 4245 3969 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 23.140.216.0/24 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 /10:42 /11:92 /12:304 /13:583 /14:1214 /15:2144 /16:13926 /17:8243 /18:13628 /19:24449 /20:43688 /21:51626 /22:111656 /23:100856 /24:600998 /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 6710 7769 UNI2-AS, ES 8151 6000 11791 UNINET, MX 11492 3527 4671 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3121 4175 VIASAT-SP-BACKBONE, US 22773 2516 3377 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2343 12947 AMAZON-02, US 30036 2217 2557 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 3544 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) ---------------------------------------------- 1:2338 2:1503 3:578 4:10 5:4553 6:167 7:6 8:1549 9:1 11:172 12:1376 13:348 14:2515 15:350 16:279 17:361 18:925 20:461 21:4 22:188 23:7268 24:3021 25:2 27:2704 29:19 31:3194 32:35 34:82 35:203 36:2408 37:4611 38:8744 39:897 40:153 41:4221 42:2007 43:2520 44:355 45:18329 46:4980 47:288 49:1982 50:1883 51:590 52:1564 54:303 55:865 56:9 57:241 58:2219 59:1221 60:1166 61:2821 62:2910 63:1825 64:5496 65:2170 66:4603 67:3015 68:1118 69:3955 70:1109 71:606 72:2857 74:2774 75:1650 76:610 77:2685 78:1860 79:1717 80:2190 81:2009 82:2734 83:1394 84:1808 85:3357 86:1028 87:2154 88:1278 89:4314 90:780 91:8316 92:2793 93:2892 94:3907 95:4262 96:1409 97:318 98:970 99:740 100:71 101:1397 102:3656 103:32264 104:4802 105:740 106:997 107:2587 108:1203 109:4106 110:2228 111:3320 112:2036 113:1800 114:1943 115:2122 116:2038 117:2757 118:2880 119:1941 120:1877 121:1358 122:2755 123:2162 124:1609 125:2883 126:88 128:1547 129:956 130:1262 131:1844 132:778 133:451 134:1528 135:330 136:1274 137:1106 138:2875 139:1602 140:1554 141:1470 142:1823 143:1624 144:1062 145:476 146:2145 147:2075 148:2594 149:2858 150:1242 151:1949 152:2098 153:504 154:7892 155:1604 156:3287 157:1904 158:1260 159:2422 160:3557 161:1921 162:3669 163:1867 164:1699 165:2190 166:1381 167:1874 168:4024 169:779 170:5053 171:1000 172:4434 173:3223 174:912 175:1277 176:3657 177:4735 178:3781 179:2235 180:2568 181:4018 182:3370 183:2072 184:2299 185:21462 186:5055 187:4337 188:4208 189:4198 190:9620 191:1541 192:11129 193:9394 194:7743 195:5511 196:3244 197:3760 198:6069 199:8377 200:8036 201:6291 202:10335 203:10513 204:4500 205:3627 206:4527 207:3441 208:4166 209:5145 210:4505 211:2526 212:4496 213:3738 214:1060 215:42 216:6587 217:3102 218:1332 219:375 220:2107 221:1052 222:717 223:2317 End of report