IPv4 R&E Routing Table Report 23:05 GMT Tue 11 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: 974102 Prefixes after maximum aggregation (per Origin AS): 373418 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475737 Number of IPv4 prefixes with a valid ROA: 534158 Number of IPv4 prefixes with an invalid ROA: 1188 Number of IPv4 prefixes with no ROA: 438756 Total ASes present in the Internet Routing Table: 76503 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65661 Origin ASes announcing only one prefix: 26856 Transit ASes present in the Internet Routing Table: 10842 Transit-only ASes present in the Internet Routing Table: 525 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: 956 Number of instances of unregistered ASNs: 975 Number of 32-bit ASNs allocated by the RIRs: 46190 Number of 32-bit ASNs visible in the Routing Table: 37873 Prefixes from 32-bit ASNs in the Routing Table: 198872 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: 447 Number of addresses announced to Internet: 3110056704 Equivalent to 185 /8s, 95 /16s and 179 /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: 319935 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255176 Total APNIC prefixes after maximum aggregation: 76081 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247155 Unique aggregates announced from the APNIC address blocks: 102589 APNIC Region origin ASes present in the Internet Routing Table: 14487 APNIC Prefixes per ASN: 17.06 APNIC Region origin ASes announcing only one prefix: 4406 APNIC Region transit ASes present in the Internet Routing Table: 1947 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10012 Number of APNIC addresses announced to Internet: 749427200 Equivalent to 44 /8s, 171 /16s and 90 /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: 287762 Total ARIN prefixes after maximum aggregation: 128224 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288600 Unique aggregates announced from the ARIN address blocks: 136529 ARIN Region origin ASes present in the Internet Routing Table: 19189 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7022 ARIN Region transit ASes present in the Internet Routing Table: 1912 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: 5158 Number of ARIN addresses announced to Internet: 1351044096 Equivalent to 80 /8s, 135 /16s and 76 /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: 271563 Total RIPE prefixes after maximum aggregation: 132451 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 269517 Unique aggregates announced from the RIPE address blocks: 172794 RIPE Region origin ASes present in the Internet Routing Table: 28838 RIPE Prefixes per ASN: 9.35 RIPE Region origin ASes announcing only one prefix: 12071 RIPE Region transit ASes present in the Internet Routing Table: 3967 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: 12285 Number of RIPE addresses announced to Internet: 731693568 Equivalent to 43 /8s, 156 /16s and 194 /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: 123436 Total LACNIC prefixes after maximum aggregation: 29219 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120338 Unique aggregates announced from the LACNIC address blocks: 48891 LACNIC Region origin ASes present in the Internet Routing Table: 11200 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2472 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: 9147 Number of LACNIC addresses announced to Internet: 172745984 Equivalent to 10 /8s, 75 /16s and 229 /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: 35209 Total AfriNIC prefixes after maximum aggregation: 6841 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 48045 Unique aggregates announced from the AfriNIC address blocks: 14550 AfriNIC Region origin ASes present in the Internet Routing Table: 1907 AfriNIC Prefixes per ASN: 25.19 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 372 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: 104916992 Equivalent to 6 /8s, 64 /16s and 232 /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 10325 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6213 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4399 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4254 530 277 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3689 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2841 848 539 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 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 12922 39641 3931 AMAZON-02, US 11492 4673 310 589 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 174 3689 8767 952 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3381 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 2943 1242 2173 AKAMAI-AS, US 30036 2546 350 421 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 7775 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3891 3395 126 AKAMAI-ASN1, NL 9009 3762 322 1940 M247, RO 12389 2982 2303 889 ROSTELECOM-AS, RU 34984 2369 361 581 TELLCOM-AS, TR 212238 2028 144 1495 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1514 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 11808 3239 587 UNINET, MX 10620 3523 487 970 Telmex Colombia S.A., CO 13999 2504 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 1329 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 1107 359 174 Axtel, S.A.B. de C.V., MX 22884 1051 67 375 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 1582 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 879 1083 15 MOBINIL, EG 6713 559 1861 35 IAM-AS, MA 36914 544 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 12922 39641 3931 AMAZON-02, US 8151 11808 3239 587 UNINET, MX 9808 10325 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7775 1714 145 UNI2-AS, ES 7545 6213 843 658 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4673 310 589 CABLEONE, US 18403 4399 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4254 530 277 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 11808 11221 UNINET, MX 9808 10325 10237 CHINAMOBILE-CN China Mobile Communications Grou 12479 7775 7630 UNI2-AS, ES 7545 6213 5555 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4399 4374 FPT-AS-AP FPT Telecom Company, VN 7155 4175 4092 VIASAT-SP-BACKBONE, US 11492 4673 4084 CABLEONE, US 9498 4254 3977 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 /14:1215 /15:2141 /16:13929 /17:8235 /18:13621 /19:24466 /20:43627 /21:51628 /22:111544 /23:100858 /24:601785 /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 6715 7775 UNI2-AS, ES 8151 6006 11808 UNINET, MX 11492 3527 4673 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3121 4175 VIASAT-SP-BACKBONE, US 22773 2518 3381 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2331 12922 AMAZON-02, US 30036 2206 2546 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 3523 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 2:1498 3:586 4:10 5:4554 6:162 7:6 8:1587 9:1 11:172 12:1374 13:346 14:2516 15:349 16:279 17:360 18:924 20:461 21:4 22:188 23:7278 24:3018 25:2 27:2699 29:19 31:3191 32:35 34:82 35:203 36:2407 37:4608 38:8910 39:897 40:157 41:4236 42:2000 43:2526 44:356 45:18274 46:5009 47:287 49:1990 50:1884 51:590 52:1559 54:302 55:1071 56:9 57:242 58:2216 59:1229 60:1166 61:2821 62:2912 63:1820 64:5493 65:2167 66:4611 67:3017 68:1122 69:3956 70:1110 71:608 72:2860 74:2775 75:1649 76:613 77:2683 78:1849 79:1732 80:2181 81:2008 82:2753 83:1392 84:1808 85:3343 86:1033 87:2157 88:1278 89:4321 90:783 91:8302 92:2786 93:2896 94:3901 95:4244 96:1409 97:318 98:971 99:738 100:71 101:1390 102:3673 103:32261 104:4788 105:740 106:1000 107:2586 108:1202 109:4103 110:2228 111:3323 112:2036 113:1798 114:1940 115:2120 116:2035 117:2757 118:2877 119:1944 120:1877 121:1357 122:2734 123:2164 124:1608 125:2884 126:86 128:1541 129:956 130:1265 131:1857 132:771 133:451 134:1528 135:330 136:1272 137:1106 138:2888 139:1609 140:1552 141:1472 142:1823 143:1635 144:1052 145:477 146:2145 147:2075 148:2596 149:2858 150:1243 151:1939 152:2108 153:504 154:7769 155:1620 156:3268 157:1904 158:1269 159:2430 160:3551 161:1928 162:3671 163:1878 164:1698 165:2189 166:1390 167:1877 168:4043 169:784 170:5083 171:1000 172:4428 173:3218 174:912 175:1277 176:3653 177:4821 178:3778 179:2320 180:2562 181:4024 182:3370 183:2074 184:2299 185:21447 186:5134 187:4366 188:4196 189:4243 190:9650 191:1546 192:11148 193:9385 194:7736 195:5506 196:3256 197:3755 198:6068 199:8369 200:8030 201:6336 202:10351 203:10523 204:4499 205:3591 206:4552 207:3440 208:4169 209:5152 210:4545 211:2533 212:4500 213:3743 214:1063 215:42 216:6588 217:3104 218:1330 219:375 220:2106 221:1053 222:717 223:2318 End of report