IPv4 R&E Routing Table Report 23:05 GMT Tue 27 Sep, 2022 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: 893992 Prefixes after maximum aggregation (per Origin AS): 340424 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 439608 Number of IPv4 prefixes with a valid ROA: 351942 Number of IPv4 prefixes with an invalid ROA: 1627 Number of IPv4 prefixes with no ROA: 540423 Total ASes present in the Internet Routing Table: 73531 Prefixes per ASN: 12.16 Origin-only ASes present in the Internet Routing Table: 63186 Origin ASes announcing only one prefix: 26010 Transit ASes present in the Internet Routing Table: 10345 Transit-only ASes present in the Internet Routing Table: 409 Paths with bogon ASNs present in the IPv4 Routing Table: 31 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 59 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 1070 Number of instances of unregistered ASNs: 1071 Number of 32-bit ASNs allocated by the RIRs: 40262 Number of 32-bit ASNs visible in the Routing Table: 33370 Prefixes from 32-bit ASNs in the Routing Table: 160093 Number of bogon 32-bit ASNs visible in the Routing Table: 7 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 539 Number of addresses announced to Internet: 3065541888 Equivalent to 182 /8s, 184 /16s and 117 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 300360 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 231410 Total APNIC prefixes after maximum aggregation: 66984 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 226317 Unique aggregates announced from the APNIC address blocks: 96297 APNIC Region origin ASes present in the Internet Routing Table: 12896 APNIC Prefixes per ASN: 17.55 APNIC Region origin ASes announcing only one prefix: 3718 APNIC Region transit ASes present in the Internet Routing Table: 1744 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8198 Number of APNIC addresses announced to Internet: 773232128 Equivalent to 46 /8s, 22 /16s and 150 /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, 131072-151865 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: 264076 Total ARIN prefixes after maximum aggregation: 120861 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 264933 Unique aggregates announced from the ARIN address blocks: 128247 ARIN Region origin ASes present in the Internet Routing Table: 18990 ARIN Prefixes per ASN: 13.95 ARIN Region origin ASes announcing only one prefix: 6952 ARIN Region transit ASes present in the Internet Routing Table: 1871 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4597 Number of ARIN addresses announced to Internet: 1291414272 Equivalent to 76 /8s, 249 /16s and 107 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 252774 Total RIPE prefixes after maximum aggregation: 118469 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 249803 Unique aggregates announced from the RIPE address blocks: 153686 RIPE Region origin ASes present in the Internet Routing Table: 28181 RIPE Prefixes per ASN: 8.86 RIPE Region origin ASes announcing only one prefix: 12038 RIPE Region transit ASes present in the Internet Routing Table: 3999 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 40 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10825 Number of RIPE addresses announced to Internet: 716695808 Equivalent to 42 /8s, 183 /16s and 233 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 116083 Total LACNIC prefixes after maximum aggregation: 27734 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 115708 Unique aggregates announced from the LACNIC address blocks: 48973 LACNIC Region origin ASes present in the Internet Routing Table: 10974 LACNIC Prefixes per ASN: 10.54 LACNIC Region origin ASes announcing only one prefix: 2709 LACNIC Region transit ASes present in the Internet Routing Table: 2219 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8733 Number of LACNIC addresses announced to Internet: 176097280 Equivalent to 10 /8s, 127 /16s and 8 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 28579 Total AfriNIC prefixes after maximum aggregation: 5580 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 36692 Unique aggregates announced from the AfriNIC address blocks: 11971 AfriNIC Region origin ASes present in the Internet Routing Table: 1685 AfriNIC Prefixes per ASN: 21.78 AfriNIC Region origin ASes announcing only one prefix: 593 AfriNIC Region transit ASes present in the Internet Routing Table: 328 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1017 Number of AfriNIC addresses announced to Internet: 107812608 Equivalent to 6 /8s, 109 /16s and 23 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9060 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5907 786 698 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3588 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3513 1042 61 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3383 1877 66 VNPT-AS-VN VNPT Corp, VN 9498 2448 499 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2231 851 413 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2229 11251 597 KIXS-AS-KR Korea Telecom, KR 45090 2143 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2128 425 216 TATACOMM-AS TATA Communications formerl 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 7266 10548 2844 AMAZON-02, US 11492 4564 302 592 CABLEONE, US 7155 3898 265 32 VIASAT-SP-BACKBONE, US 22773 3774 3063 343 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3530 1841 2535 AKAMAI-AS, US 6327 3488 1319 64 SHAW, CA 749 3033 50728 2291 DNIC-AS-00749, US 30036 2603 368 272 MEDIACOM-ENTERPRISE-BUSINESS, US 396982 2546 3388 378 GOOGLE-CLOUD-PLATFORM, US 209 2349 4935 396 CENTURYLINK-US-LEGACY-QWEST, 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 6907 1730 144 UNI2-AS, ES 20940 4061 3360 193 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3990 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2890 2290 912 ROSTELECOM-AS, RU 9009 2608 252 1342 M247, GB 6849 2554 339 20 UKRTELNET, UA 34984 2258 358 634 TELLCOM-AS, TR 58224 1796 936 540 TCI, IR 13188 1610 100 27 TRIOLAN, UA 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 10999 3392 559 Uninet S.A. de C.V., MX 10620 3484 513 829 Telmex Colombia S.A., CO 11830 2311 369 65 Instituto Costarricense de Electricidad 13999 2010 328 515 Mega Cable, S.A. de C.V., MX 28573 1348 2328 264 Claro NXT Telecomunicacoes Ltda, BR 6503 1293 338 521 Axtel, S.A.B. de C.V., MX 3816 1278 708 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1140 369 21 Telefonica del Peru S.A.A., PE 11664 1056 178 465 Techtel LMDS Comunicaciones Interactiva 26615 987 2466 43 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 24863 1570 393 21 LINKdotNET-AS, EG 24835 1520 521 31 RAYA-AS, EG 36992 1349 1519 270 ETISALAT-MISR, EG 36903 1268 550 99 MT-MPLS, MA 29571 996 68 32 ORANGE-COTE-IVOIRE, CI 36935 814 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 523 53 41 WANANCHI-, KE 37342 489 32 1 MOVITEL, MZ 23889 401 232 16 MauritiusTelecom, MU 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 8151 10999 3392 559 Uninet S.A. de C.V., MX 9808 9060 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7266 10548 2844 AMAZON-02, US 12479 6907 1730 144 UNI2-AS, ES 7545 5907 786 698 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4564 302 592 CABLEONE, US 20940 4061 3360 193 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3990 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 7155 3898 265 32 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 9808 9060 9013 CHINAMOBILE-CN China Mobile Communications Grou 12479 6907 6763 UNI2-AS, ES 7545 5907 5209 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7266 4422 AMAZON-02, US 11492 4564 3972 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3990 3952 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4061 3868 AKAMAI-ASN1, NL 7155 3898 3866 VIASAT-SP-BACKBONE, US 7552 3588 3568 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 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW 41.57.124.0/24 Origin: 37442 UNASSIGNED 41.57.124.0/24 Transit: 37204 TELONE, ZW 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 /9:13 /10:38 /11:101 /12:297 /13:586 /14:1193 /15:2091 /16:13449 /17:8254 /18:13763 /19:24713 /20:43095 /21:50878 /22:107965 /23:95745 /24:531788 /25:0 /26:1 /27:1 /28:0 /29:1 /30:4 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5910 6907 UNI2-AS, ES 8151 4742 10999 Uninet S.A. de C.V., MX 11492 3484 4564 CABLEONE, US 8551 3454 3990 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3297 3488 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 2987 3898 VIASAT-SP-BACKBONE, US 22773 2801 3774 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2411 2554 UKRTELNET, UA 30036 2261 2603 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1896 2:1017 3:163 4:5 5:3907 6:116 7:6 8:1545 9:1 11:173 12:1627 13:340 14:2358 15:265 16:68 17:361 18:324 20:237 21:4 22:188 23:5948 24:2453 25:6 27:2664 29:19 31:2435 32:91 34:7 35:89 36:1887 37:4467 38:3556 39:751 40:152 41:3915 42:1169 43:2225 44:294 45:16115 46:4153 47:331 48:1 49:1721 50:1924 51:242 52:1495 54:388 55:850 56:8 57:76 58:1725 59:1109 60:986 61:2352 62:2544 63:1917 64:5587 65:2310 66:4843 67:2962 68:1200 69:4162 70:1308 71:680 72:2983 74:2639 75:1485 76:591 77:2277 78:1860 79:3138 80:2059 81:1642 82:1510 83:1209 84:1400 85:2908 86:728 87:1914 88:1167 89:3393 90:552 91:7577 92:2049 93:2540 94:3524 95:3824 96:1328 97:345 98:1035 99:736 100:75 101:1295 102:2312 103:30032 104:4554 105:472 106:887 107:2530 108:892 109:4305 110:1990 111:3275 112:2039 113:1478 114:1503 115:1980 116:1886 117:2486 118:2325 119:1826 120:1707 121:1016 122:2534 123:2099 124:1517 125:2100 128:1168 129:986 130:959 131:2024 132:810 133:378 134:1894 135:291 136:805 137:882 138:2514 139:1509 140:1010 141:1460 142:1340 143:1397 144:1195 145:345 146:1827 147:1521 148:2211 149:1785 150:867 151:1105 152:1933 153:468 154:3810 155:1423 156:1692 157:1292 158:1036 159:2196 160:2529 161:1357 162:3492 163:1397 164:1666 165:1649 166:782 167:1738 168:3782 169:871 170:4524 171:846 172:3366 173:3108 174:1018 175:1164 176:3612 177:4737 178:3567 179:2143 180:2365 181:3248 182:3195 183:1926 184:2358 185:19727 186:4528 187:3910 188:4000 189:3472 190:8959 191:1428 192:10967 193:8698 194:7131 195:5037 196:3045 197:2462 198:5927 199:6014 200:7582 201:5797 202:10138 203:10004 204:4513 205:3471 206:3806 207:3370 208:4035 209:4715 210:4116 211:2326 212:4043 213:3549 214:1116 215:55 216:6405 217:2628 218:1267 219:406 220:1775 221:921 222:656 223:1970 End of report