IPv4 R&E Routing Table Report 23:05 GMT Thu 06 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: 973398 Prefixes after maximum aggregation (per Origin AS): 373188 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476248 Number of IPv4 prefixes with a valid ROA: 534103 Number of IPv4 prefixes with an invalid ROA: 1036 Number of IPv4 prefixes with no ROA: 438259 Total ASes present in the Internet Routing Table: 76507 Prefixes per ASN: 12.72 Origin-only ASes present in the Internet Routing Table: 65646 Origin ASes announcing only one prefix: 26886 Transit ASes present in the Internet Routing Table: 10861 Transit-only ASes present in the Internet Routing Table: 527 Paths with bogon ASNs present in the IPv4 Routing Table: 15 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: 969 Number of instances of unregistered ASNs: 975 Number of 32-bit ASNs allocated by the RIRs: 46200 Number of 32-bit ASNs visible in the Routing Table: 37861 Prefixes from 32-bit ASNs in the Routing Table: 198955 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: 459 Number of addresses announced to Internet: 3110642688 Equivalent to 185 /8s, 104 /16s and 164 /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: 319256 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255072 Total APNIC prefixes after maximum aggregation: 76064 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247010 Unique aggregates announced from the APNIC address blocks: 102605 APNIC Region origin ASes present in the Internet Routing Table: 14493 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4420 APNIC Region transit ASes present in the Internet Routing Table: 1954 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10009 Number of APNIC addresses announced to Internet: 749419776 Equivalent to 44 /8s, 171 /16s and 61 /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: 287311 Total ARIN prefixes after maximum aggregation: 128128 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288014 Unique aggregates announced from the ARIN address blocks: 136432 ARIN Region origin ASes present in the Internet Routing Table: 19181 ARIN Prefixes per ASN: 15.02 ARIN Region origin ASes announcing only one prefix: 7016 ARIN Region transit ASes present in the Internet Routing Table: 1910 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5154 Number of ARIN addresses announced to Internet: 1349998336 Equivalent to 80 /8s, 119 /16s and 87 /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: 271793 Total RIPE prefixes after maximum aggregation: 132362 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 269803 Unique aggregates announced from the RIPE address blocks: 172768 RIPE Region origin ASes present in the Internet Routing Table: 28833 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12076 RIPE Region transit ASes present in the Internet Routing Table: 3962 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: 12277 Number of RIPE addresses announced to Internet: 732697856 Equivalent to 43 /8s, 172 /16s and 21 /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: 123121 Total LACNIC prefixes after maximum aggregation: 29208 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120068 Unique aggregates announced from the LACNIC address blocks: 48818 LACNIC Region origin ASes present in the Internet Routing Table: 11207 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2490 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: 9150 Number of LACNIC addresses announced to Internet: 173765376 Equivalent to 10 /8s, 91 /16s and 115 /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: 35132 Total AfriNIC prefixes after maximum aggregation: 6821 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 48044 Unique aggregates announced from the AfriNIC address blocks: 15229 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.18 AfriNIC Region origin ASes announcing only one prefix: 701 AfriNIC Region transit ASes present in the Internet Routing Table: 374 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: 1271 Number of AfriNIC addresses announced to Internet: 104529408 Equivalent to 6 /8s, 58 /16s and 254 /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 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4398 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4241 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3921 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3688 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3270 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2848 855 532 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2170 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 12962 39642 3927 AMAZON-02, US 11492 4671 310 587 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3470 8768 961 COGENT-174, US 22773 3377 3035 178 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 16625 2943 1246 2172 AKAMAI-AS, US 396982 2937 3660 454 GOOGLE-CLOUD-PLATFORM, US 30036 2560 353 396 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 7764 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3896 3395 126 AKAMAI-ASN1, NL 9009 3756 321 1931 M247, RO 12389 2978 2303 889 ROSTELECOM-AS, RU 34984 2368 361 580 TELLCOM-AS, TR 212238 2028 146 1498 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1523 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 11780 3234 592 UNINET, MX 10620 3544 492 962 Telmex Colombia S.A., CO 13999 2506 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 1330 781 212 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1192 371 22 Telefonica del Peru S.A.A., PE 11664 1165 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1105 374 163 Axtel, S.A.B. de C.V., MX 22884 1048 82 371 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 1618 389 16 LINKdotNET-AS, EG 29571 1577 99 102 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 859 1083 15 MOBINIL, EG 6713 557 1861 35 IAM-AS, MA 36914 550 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 12962 39642 3927 AMAZON-02, US 8151 11780 3234 592 UNINET, MX 9808 10324 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7764 1714 145 UNI2-AS, ES 7545 6211 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4671 310 587 CABLEONE, US 18403 4398 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4241 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 11780 11188 UNINET, MX 9808 10324 10236 CHINAMOBILE-CN China Mobile Communications Grou 12479 7764 7619 UNI2-AS, ES 7545 6211 5553 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4398 4373 FPT-AS-AP FPT Telecom Company, VN 7155 4175 4092 VIASAT-SP-BACKBONE, US 11492 4671 4084 CABLEONE, US 9498 4241 3965 BBIL-AP BHARTI Airtel Ltd., IN 7552 3921 3895 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 /16:13924 /17:8244 /18:13630 /19:24451 /20:43718 /21:51638 /22:111753 /23:100856 /24:600773 /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 6705 7764 UNI2-AS, ES 8151 5992 11780 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 2332 12962 AMAZON-02, US 30036 2220 2560 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) ---------------------------------------------- 1:2336 2:1503 3:584 4:10 5:4551 6:167 7:6 8:1549 9:1 11:172 12:1376 13:349 14:2514 15:351 16:277 17:362 18:925 20:455 21:4 22:188 23:7272 24:2743 25:2 27:2709 29:19 31:3185 32:35 34:82 35:203 36:2408 37:4608 38:8730 39:898 40:153 41:4217 42:1994 43:2521 44:356 45:18332 46:5005 47:289 49:1980 50:1888 51:590 52:1565 54:302 55:1071 56:9 57:241 58:2217 59:1218 60:1165 61:2819 62:2910 63:1825 64:5508 65:2172 66:4614 67:3017 68:1119 69:3966 70:1102 71:607 72:2867 74:2772 75:1650 76:610 77:2685 78:1858 79:1717 80:2190 81:2011 82:2715 83:1395 84:1807 85:3351 86:1029 87:2153 88:1277 89:4313 90:779 91:8317 92:2789 93:2892 94:3903 95:4258 96:1406 97:318 98:970 99:740 100:71 101:1395 102:3673 103:32286 104:4797 105:741 106:997 107:2588 108:1205 109:4105 110:2228 111:3326 112:2044 113:1800 114:1942 115:2124 116:2033 117:2756 118:2879 119:1941 120:1877 121:1358 122:2755 123:2163 124:1608 125:2884 126:88 128:1548 129:957 130:1266 131:1839 132:778 133:451 134:1529 135:329 136:1272 137:1106 138:2874 139:1614 140:1553 141:1466 142:1822 143:1630 144:1045 145:474 146:2145 147:2074 148:2596 149:2849 150:1243 151:1958 152:2099 153:504 154:7806 155:1616 156:3273 157:1907 158:1271 159:2418 160:3561 161:1923 162:3680 163:1856 164:1701 165:2190 166:1384 167:1874 168:4032 169:786 170:5062 171:999 172:4436 173:3225 174:912 175:1278 176:3657 177:4691 178:3773 179:2228 180:2566 181:4022 182:3370 183:2072 184:2299 185:21442 186:5073 187:4303 188:4208 189:4180 190:9651 191:1528 192:11132 193:9387 194:7735 195:5501 196:3230 197:3756 198:6063 199:8373 200:8017 201:6296 202:10311 203:10533 204:4509 205:3619 206:4529 207:3447 208:4174 209:5157 210:4505 211:2528 212:4497 213:3733 214:1062 215:42 216:6576 217:3104 218:1332 219:375 220:2107 221:1052 222:718 223:2317 End of report