IPv4 R&E Routing Table Report 23:05 GMT Tue 27 May, 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: 982257 Prefixes after maximum aggregation (per Origin AS): 379072 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481839 Number of IPv4 prefixes with a valid ROA: 546323 Number of IPv4 prefixes with an invalid ROA: 753 Number of IPv4 prefixes with no ROA: 435181 Total ASes present in the Internet Routing Table: 76774 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65814 Origin ASes announcing only one prefix: 26907 Transit ASes present in the Internet Routing Table: 10960 Transit-only ASes present in the Internet Routing Table: 537 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1038 Number of instances of unregistered ASNs: 1055 Number of 32-bit ASNs allocated by the RIRs: 46522 Number of 32-bit ASNs visible in the Routing Table: 38272 Prefixes from 32-bit ASNs in the Routing Table: 204057 Number of bogon 32-bit ASNs visible in the Routing Table: 44 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 456 Number of addresses announced to Internet: 3109539840 Equivalent to 185 /8s, 87 /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: 320761 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258577 Total APNIC prefixes after maximum aggregation: 77159 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249614 Unique aggregates announced from the APNIC address blocks: 104266 APNIC Region origin ASes present in the Internet Routing Table: 14576 APNIC Prefixes per ASN: 17.12 APNIC Region origin ASes announcing only one prefix: 4403 APNIC Region transit ASes present in the Internet Routing Table: 1959 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10121 Number of APNIC addresses announced to Internet: 748678656 Equivalent to 44 /8s, 159 /16s and 238 /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: 289580 Total ARIN prefixes after maximum aggregation: 130862 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290239 Unique aggregates announced from the ARIN address blocks: 139637 ARIN Region origin ASes present in the Internet Routing Table: 19208 ARIN Prefixes per ASN: 15.11 ARIN Region origin ASes announcing only one prefix: 7045 ARIN Region transit ASes present in the Internet Routing Table: 1924 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5211 Number of ARIN addresses announced to Internet: 1352381440 Equivalent to 80 /8s, 155 /16s and 180 /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: 273548 Total RIPE prefixes after maximum aggregation: 134184 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271836 Unique aggregates announced from the RIPE address blocks: 174905 RIPE Region origin ASes present in the Internet Routing Table: 28923 RIPE Prefixes per ASN: 9.40 RIPE Region origin ASes announcing only one prefix: 12086 RIPE Region transit ASes present in the Internet Routing Table: 3969 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12459 Number of RIPE addresses announced to Internet: 731371264 Equivalent to 43 /8s, 151 /16s and 215 /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: 123976 Total LACNIC prefixes after maximum aggregation: 29548 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120357 Unique aggregates announced from the LACNIC address blocks: 48950 LACNIC Region origin ASes present in the Internet Routing Table: 11254 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2682 LACNIC Region transit ASes present in the Internet Routing Table: 2536 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 74 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9204 Number of LACNIC addresses announced to Internet: 171850752 Equivalent to 10 /8s, 62 /16s and 60 /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: 35538 Total AfriNIC prefixes after maximum aggregation: 6689 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 49755 Unique aggregates announced from the AfriNIC address blocks: 13675 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 26.06 AfriNIC Region origin ASes announcing only one prefix: 691 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1277 Number of AfriNIC addresses announced to Internet: 105047808 Equivalent to 6 /8s, 66 /16s and 231 /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 11045 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4372 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4359 533 299 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2870 853 530 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2176 434 193 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 13536 40826 5167 AMAZON-02, US 11492 4735 314 586 CABLEONE, US 7155 3864 286 85 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3452 8746 889 COGENT-174, US 22773 3345 3015 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3172 3852 420 GOOGLE-CLOUD-PLATFORM, US 16625 3021 1258 2227 AKAMAI-AS, US 36352 2821 230 850 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 7709 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3958 3395 123 AKAMAI-ASN1, NL 9009 3880 341 2092 M247, RO 12389 3072 2305 888 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2162 152 1591 CDNEXT, GB 8452 1611 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1422 94 737 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 12170 3255 583 UNINET, MX 10620 3500 480 1017 Telmex Colombia S.A., CO 13999 2514 540 365 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 11664 1114 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1060 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1041 2503 52 TIM SA, BR 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 1780 644 27 RAYA-AS, EG 24863 1654 389 17 LINKdotNET-AS, EG 29571 1608 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1058 523 46 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 551 82 3 KENET-AS, KE 15399 545 57 60 WANANCHI-, 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 13536 40826 5167 AMAZON-02, US 8151 12170 3255 583 UNINET, MX 9808 11045 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7709 1714 148 UNI2-AS, ES 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4735 314 586 CABLEONE, US 18403 4372 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4359 533 299 BBIL-AP BHARTI Airtel Ltd., IN 20940 3958 3395 123 AKAMAI-ASN1, NL 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 12170 11587 UNINET, MX 9808 11045 10949 CHINAMOBILE-CN China Mobile Communications Grou 12479 7709 7561 UNI2-AS, ES 7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4372 4347 FPT-AS-AP FPT Telecom Company, VN 11492 4735 4149 CABLEONE, US 9498 4359 4060 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 3896 VIETEL-AS-AP Viettel Group, VN 20940 3958 3835 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 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 /11:92 /12:299 /13:580 /14:1211 /15:2141 /16:13863 /17:8205 /18:13599 /19:24486 /20:43813 /21:51431 /22:111546 /23:101880 /24:609038 /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 6622 7709 UNI2-AS, ES 8151 6359 12170 UNINET, MX 11492 3532 4735 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 2823 3864 VIASAT-SP-BACKBONE, US 22773 2497 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2380 13536 AMAZON-02, US 30036 2232 2573 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3500 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) ---------------------------------------------- 1:2376 2:1501 3:792 4:9 5:4701 6:162 7:6 8:1577 9:1 11:172 12:1360 13:435 14:2520 15:354 16:285 17:376 18:919 20:528 21:4 22:188 23:7524 24:2752 25:2 27:2765 29:19 31:3269 32:36 33:1 34:83 35:209 36:2969 37:4602 38:9192 39:907 40:170 41:4222 42:1936 43:2624 44:384 45:18656 46:5055 47:301 49:1942 50:1881 51:585 52:1563 54:320 55:1093 56:11 57:259 58:2242 59:1301 60:1168 61:2828 62:2913 63:1796 64:5459 65:2180 66:4617 67:3054 68:1125 69:3837 70:1082 71:625 72:2835 74:2778 75:1508 76:615 77:2698 78:1888 79:1671 80:2205 81:2076 82:3124 83:1446 84:1856 85:3416 86:1065 87:2125 88:1281 89:4394 90:775 91:8364 92:2720 93:2894 94:4057 95:4322 96:1416 97:312 98:978 99:687 100:71 101:1176 102:3883 103:32824 104:5056 105:767 106:1034 107:2649 108:1242 109:4027 110:2256 111:3289 112:2099 113:1814 114:1976 115:2145 116:2066 117:2534 118:2858 119:1924 120:1943 121:1376 122:2761 123:2176 124:1627 125:2885 126:91 128:1584 129:954 130:1299 131:1963 132:775 133:451 134:1535 135:332 136:1353 137:1118 138:2892 139:1594 140:1590 141:1503 142:1903 143:1782 144:1133 145:503 146:2177 147:2108 148:2698 149:2889 150:1236 151:1933 152:2083 153:495 154:8005 155:1984 156:3257 157:1915 158:1316 159:2444 160:3839 161:1843 162:3750 163:2174 164:1730 165:2213 166:1489 167:1895 168:4301 169:786 170:5088 171:1008 172:4440 173:3288 174:914 175:1310 176:3697 177:4769 178:3642 179:2329 180:2763 181:4072 182:3442 183:2142 184:2051 185:21552 186:5153 187:4491 188:4251 189:4320 190:9550 191:1478 192:11274 193:9467 194:7779 195:5528 196:3259 197:3659 198:6071 199:8509 200:8060 201:6353 202:10298 203:10631 204:4528 205:3598 206:4455 207:3454 208:4235 209:5127 210:4545 211:2531 212:4552 213:3720 214:1024 215:48 216:6728 217:3117 218:1346 219:395 220:2091 221:1094 222:722 223:2386 End of report