IPv4 R&E Routing Table Report 23:05 GMT Sat 07 May, 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: 881473 Prefixes after maximum aggregation (per Origin AS): 335021 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430550 Number of IPv4 prefixes with a valid ROA: 322023 Number of IPv4 prefixes with an invalid ROA: 1068 Number of IPv4 prefixes with no ROA: 558382 Total ASes present in the Internet Routing Table: 72912 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62605 Origin ASes announcing only one prefix: 25719 Transit ASes present in the Internet Routing Table: 10307 Transit-only ASes present in the Internet Routing Table: 370 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 66 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 849 Number of instances of unregistered ASNs: 854 Number of 32-bit ASNs allocated by the RIRs: 39323 Number of 32-bit ASNs visible in the Routing Table: 32575 Prefixes from 32-bit ASNs in the Routing Table: 153260 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: 481 Number of addresses announced to Internet: 3066360576 Equivalent to 182 /8s, 196 /16s and 243 /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: 296395 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228724 Total APNIC prefixes after maximum aggregation: 65978 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223826 Unique aggregates announced from the APNIC address blocks: 94765 APNIC Region origin ASes present in the Internet Routing Table: 12527 APNIC Prefixes per ASN: 17.87 APNIC Region origin ASes announcing only one prefix: 3561 APNIC Region transit ASes present in the Internet Routing Table: 1712 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7793 Number of APNIC addresses announced to Internet: 773297920 Equivalent to 46 /8s, 23 /16s and 151 /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: 260187 Total ARIN prefixes after maximum aggregation: 119496 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260218 Unique aggregates announced from the ARIN address blocks: 124780 ARIN Region origin ASes present in the Internet Routing Table: 18942 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6903 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: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4464 Number of ARIN addresses announced to Internet: 1295174144 Equivalent to 77 /8s, 50 /16s and 202 /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: 249382 Total RIPE prefixes after maximum aggregation: 116076 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246708 Unique aggregates announced from the RIPE address blocks: 150380 RIPE Region origin ASes present in the Internet Routing Table: 28122 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12036 RIPE Region transit ASes present in the Internet Routing Table: 4002 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10702 Number of RIPE addresses announced to Internet: 713893888 Equivalent to 42 /8s, 141 /16s and 40 /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: 114522 Total LACNIC prefixes after maximum aggregation: 27370 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114352 Unique aggregates announced from the LACNIC address blocks: 48560 LACNIC Region origin ASes present in the Internet Routing Table: 10962 LACNIC Prefixes per ASN: 10.43 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2213 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 66 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8659 Number of LACNIC addresses announced to Internet: 176400384 Equivalent to 10 /8s, 131 /16s and 168 /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: 27809 Total AfriNIC prefixes after maximum aggregation: 5445 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 35888 Unique aggregates announced from the AfriNIC address blocks: 11648 AfriNIC Region origin ASes present in the Internet Routing Table: 1625 AfriNIC Prefixes per ASN: 22.08 AfriNIC Region origin ASes announcing only one prefix: 562 AfriNIC Region transit ASes present in the Internet Routing Table: 330 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 957 Number of AfriNIC addresses announced to Internet: 107322368 Equivalent to 6 /8s, 101 /16s and 156 /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 9131 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5917 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3592 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3431 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2402 499 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2251 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2118 438 201 TATACOMM-AS TATA Communications formerl 24560 2053 855 379 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 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 6360 10283 2731 AMAZON-02, US 11492 4490 298 690 CABLEONE, US 22773 3924 3064 352 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3602 1842 2543 AKAMAI-AS, US 6327 3436 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2622 374 138 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2513 4962 423 CENTURYLINK-US-LEGACY-QWEST, US 20115 2249 3051 492 CHARTER-20115, 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 6767 1730 150 UNI2-AS, ES 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3930 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2906 355 21 UKRTELNET, UA 12389 2897 2273 908 ROSTELECOM-AS, RU 9009 2497 250 1299 M247, GB 34984 2240 358 633 TELLCOM-AS, TR 58224 1815 931 614 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 10583 3394 562 Uninet S.A. de C.V., MX 10620 3474 519 737 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1782 298 470 Mega Cable, S.A. de C.V., MX 6503 1454 355 527 Axtel, S.A.B. de C.V., MX 28573 1373 2333 253 CLARO S.A., BR 3816 1255 669 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1079 369 21 Telefonica del Peru S.A.A., PE 11664 1017 191 442 Techtel LMDS Comunicaciones Interactiva 11172 960 133 63 Alestra, S. de R.L. 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 24863 1653 393 21 LINKdotNET-AS, EG 24835 1442 501 30 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 932 65 59 ORANGE-COTE-IVOIRE, CI 36935 619 520 42 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 512 51 33 WANANCHI-, KE 37342 467 32 1 MOVITEL, MZ 23889 420 232 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 10583 3394 562 Uninet S.A. de C.V., MX 9808 9131 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6767 1730 150 UNI2-AS, ES 16509 6360 10283 2731 AMAZON-02, US 7545 5917 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4490 298 690 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3930 3360 192 AKAMAI-ASN1, NL 22773 3924 3064 352 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 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 9131 9090 CHINAMOBILE-CN China Mobile Communications Grou 12479 6767 6617 UNI2-AS, ES 7545 5917 5221 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4010 3971 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 11492 4490 3800 CABLEONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 20940 3930 3738 AKAMAI-ASN1, NL 16509 6360 3629 AMAZON-02, US 7552 3592 3573 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 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 /10:40 /11:100 /12:303 /13:589 /14:1203 /15:2099 /16:13522 /17:8240 /18:13776 /19:24823 /20:42415 /21:50763 /22:106971 /23:94365 /24:522227 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5748 6767 UNI2-AS, ES 8151 4299 10583 Uninet S.A. de C.V., MX 8551 3476 4010 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3396 4490 CABLEONE, US 6327 3249 3436 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2934 3924 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2757 2906 UKRTELNET, UA 30036 2278 2622 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1924 2:1032 3:154 4:6 5:3783 6:104 7:5 8:1526 9:1 11:172 12:1710 13:301 14:2374 15:198 16:45 17:384 18:159 20:209 21:4 22:188 23:5643 24:2268 25:6 27:2598 29:19 31:2413 32:93 34:1 35:73 36:1778 37:4434 38:2794 39:699 40:153 41:3976 42:1090 43:2188 44:293 45:15988 46:4121 47:294 49:1684 50:2157 51:100 52:1420 54:365 55:736 56:8 57:60 58:1695 59:1116 60:959 61:2244 62:2503 63:1941 64:5497 65:2319 66:4816 67:2972 68:1190 69:4114 70:1334 71:672 72:3047 74:2638 75:1390 76:585 77:2181 78:1851 79:3111 80:1991 81:1594 82:1492 83:1204 84:1351 85:2910 86:710 87:1964 88:1103 89:3295 90:518 91:7613 92:1993 93:2578 94:3490 95:3849 96:1305 97:349 98:993 99:737 100:75 101:1271 102:2079 103:28997 104:4368 105:462 106:873 107:2526 108:819 109:4197 110:2009 111:3230 112:2026 113:1473 114:1479 115:1966 116:1875 117:2510 118:2328 119:1857 120:1662 121:1018 122:2545 123:2093 124:1532 125:2056 128:1177 129:1094 130:957 131:2040 132:792 133:372 134:1898 135:289 136:882 137:848 138:2439 139:1499 140:847 141:1391 142:1281 143:1442 144:1206 145:343 146:1799 147:1472 148:2219 149:1719 150:846 151:1080 152:1849 153:459 154:3497 155:1414 156:1748 157:1223 158:1041 159:2154 160:2487 161:1262 162:3458 163:1261 164:1626 165:1606 166:702 167:1725 168:3767 169:838 170:4489 171:827 172:3136 173:3097 174:1024 175:1132 176:3490 177:4645 178:3495 179:2016 180:2316 181:2970 182:3207 183:1950 184:2379 185:19454 186:4332 187:3699 188:3853 189:3204 190:8848 191:1311 192:10981 193:8599 194:6995 195:4950 196:2988 197:2433 198:5949 199:6020 200:7405 201:5710 202:10089 203:9990 204:4554 205:3451 206:3717 207:3344 208:4028 209:4638 210:4053 211:2341 212:3996 213:3419 214:1154 215:67 216:6421 217:2666 218:1248 219:404 220:1668 221:977 222:670 223:2108 End of report