IPv4 R&E Routing Table Report 23:05 GMT Wed 07 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: 977608 Prefixes after maximum aggregation (per Origin AS): 377363 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479117 Number of IPv4 prefixes with a valid ROA: 541840 Number of IPv4 prefixes with an invalid ROA: 806 Number of IPv4 prefixes with no ROA: 434962 Total ASes present in the Internet Routing Table: 76713 Prefixes per ASN: 12.74 Origin-only ASes present in the Internet Routing Table: 65805 Origin ASes announcing only one prefix: 26935 Transit ASes present in the Internet Routing Table: 10908 Transit-only ASes present in the Internet Routing Table: 543 Paths with bogon ASNs present in the IPv4 Routing Table: 21 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 985 Number of instances of unregistered ASNs: 987 Number of 32-bit ASNs allocated by the RIRs: 46348 Number of 32-bit ASNs visible in the Routing Table: 38163 Prefixes from 32-bit ASNs in the Routing Table: 201282 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 466 Number of addresses announced to Internet: 3109885440 Equivalent to 185 /8s, 93 /16s and 22 /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: 320216 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256412 Total APNIC prefixes after maximum aggregation: 76909 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 247596 Unique aggregates announced from the APNIC address blocks: 103085 APNIC Region origin ASes present in the Internet Routing Table: 14566 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4441 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 45 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10103 Number of APNIC addresses announced to Internet: 748392448 Equivalent to 44 /8s, 155 /16s and 144 /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: 287918 Total ARIN prefixes after maximum aggregation: 129876 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 289223 Unique aggregates announced from the ARIN address blocks: 138601 ARIN Region origin ASes present in the Internet Routing Table: 19207 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7045 ARIN Region transit ASes present in the Internet Routing Table: 1918 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5193 Number of ARIN addresses announced to Internet: 1353008640 Equivalent to 80 /8s, 165 /16s and 70 /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: 273432 Total RIPE prefixes after maximum aggregation: 133805 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271241 Unique aggregates announced from the RIPE address blocks: 174226 RIPE Region origin ASes present in the Internet Routing Table: 28907 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12064 RIPE Region transit ASes present in the Internet Routing Table: 3972 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12419 Number of RIPE addresses announced to Internet: 731492864 Equivalent to 43 /8s, 153 /16s and 178 /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: 123471 Total LACNIC prefixes after maximum aggregation: 29402 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119843 Unique aggregates announced from the LACNIC address blocks: 48842 LACNIC Region origin ASes present in the Internet Routing Table: 11221 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2693 LACNIC Region transit ASes present in the Internet Routing Table: 2488 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9175 Number of LACNIC addresses announced to Internet: 171735552 Equivalent to 10 /8s, 60 /16s and 122 /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: 35390 Total AfriNIC prefixes after maximum aggregation: 6753 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49239 Unique aggregates announced from the AfriNIC address blocks: 13976 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.81 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 372 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1273 Number of AfriNIC addresses announced to Internet: 105032704 Equivalent to 6 /8s, 66 /16s and 172 /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 10652 8754 88 CHINAMOBILE-CN China Mobile Communication 7545 6217 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4335 533 291 BBIL-AP BHARTI Airtel Ltd., IN 18403 4306 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3688 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2863 852 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2187 11523 647 KIXS-AS-KR Korea Telecom, KR 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 13296 40822 4554 AMAZON-02, US 11492 4721 313 593 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3618 8750 898 COGENT-174, US 22773 3354 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54863 2505 DNIC-AS-00749, US 16625 3021 1265 2222 AKAMAI-AS, US 396982 2955 3657 469 GOOGLE-CLOUD-PLATFORM, US 36352 2786 228 853 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 4797 293 62 ALJAWWALSTC-AS, SA 20940 3959 3395 123 AKAMAI-ASN1, NL 9009 3807 328 1979 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2134 150 1575 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1602 1852 14 TE-AS TE-AS, EG 8551 1427 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 12030 3245 581 UNINET, MX 10620 3523 486 995 Telmex Colombia S.A., CO 13999 2514 540 362 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1359 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1335 784 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1197 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1192 371 22 Telefonica del Peru S.A.A., PE 22884 1056 67 379 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 374 163 Axtel, S.A.B. de C.V., MX 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 1744 631 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1600 103 23 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1036 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 552 82 3 KENET-AS, KE 15399 525 56 53 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 13296 40822 4554 AMAZON-02, US 8151 12030 3245 581 UNINET, MX 9808 10652 8754 88 CHINAMOBILE-CN China Mobile Communication 12479 7709 1714 148 UNI2-AS, ES 7545 6217 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4721 313 593 CABLEONE, US 9498 4335 533 291 BBIL-AP BHARTI Airtel Ltd., IN 18403 4306 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3959 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 12030 11449 UNINET, MX 9808 10652 10564 CHINAMOBILE-CN China Mobile Communications Grou 12479 7709 7561 UNI2-AS, ES 7545 6217 5561 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4306 4281 FPT-AS-AP FPT Telecom Company, VN 11492 4721 4128 CABLEONE, US 9498 4335 4044 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3959 3836 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 23.152.48.0/24 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 /10:41 /11:93 /12:300 /13:580 /14:1213 /15:2143 /16:13947 /17:8208 /18:13616 /19:24458 /20:43554 /21:51384 /22:111492 /23:101186 /24:605361 /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 6630 7709 UNI2-AS, ES 8151 6233 12030 UNINET, MX 11492 3533 4721 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2502 3354 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2308 13296 AMAZON-02, US 30036 2217 2557 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2189 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) ---------------------------------------------- 1:2339 2:1503 3:693 4:10 5:4677 6:162 7:6 8:1588 9:1 11:172 12:1367 13:360 14:2518 15:353 16:283 17:370 18:922 20:517 21:4 22:188 23:7487 24:2746 25:2 27:2735 29:19 31:3238 32:37 33:1 34:83 35:204 36:2661 37:4691 38:9110 39:907 40:169 41:4206 42:1943 43:2564 44:374 45:18530 46:5039 47:294 49:1932 50:1888 51:590 52:1552 54:303 55:1095 56:11 57:254 58:2200 59:1283 60:1170 61:2812 62:2926 63:1810 64:5464 65:2164 66:4616 67:3056 68:1119 69:3819 70:1086 71:622 72:2848 74:2766 75:1607 76:614 77:2732 78:1872 79:1755 80:2199 81:2047 82:3218 83:1430 84:1846 85:3429 86:1052 87:2145 88:1280 89:4353 90:776 91:8332 92:2716 93:2891 94:4099 95:4329 96:1414 97:312 98:982 99:670 100:72 101:1390 102:3919 103:32181 104:4824 105:756 106:1033 107:2626 108:1208 109:4074 110:2235 111:3344 112:2055 113:1791 114:1967 115:2168 116:2041 117:2610 118:2886 119:1945 120:1879 121:1369 122:2749 123:2225 124:1613 125:2850 126:91 128:1559 129:951 130:1285 131:1942 132:772 133:451 134:1529 135:331 136:1302 137:1112 138:2878 139:1624 140:1575 141:1506 142:1900 143:1715 144:1102 145:503 146:2151 147:2095 148:2684 149:2853 150:1255 151:1842 152:2093 153:497 154:8237 155:1682 156:3375 157:1892 158:1302 159:2440 160:3575 161:1880 162:3713 163:2111 164:1702 165:2198 166:1471 167:1888 168:4033 169:785 170:5065 171:1007 172:4401 173:3258 174:906 175:1296 176:3666 177:4655 178:3617 179:2275 180:2607 181:4053 182:3412 183:2060 184:2050 185:21529 186:5102 187:4417 188:4222 189:4242 190:9548 191:1475 192:11208 193:9463 194:7767 195:5500 196:3285 197:3702 198:6081 199:8486 200:8043 201:6294 202:10217 203:10535 204:4516 205:3593 206:4581 207:3446 208:4237 209:5168 210:4526 211:2534 212:4516 213:3700 214:1028 215:48 216:6696 217:3121 218:1336 219:378 220:2090 221:1085 222:715 223:2352 End of report