IPv4 R&E Routing Table Report 23:05 GMT Mon 16 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: 881692 Prefixes after maximum aggregation (per Origin AS): 335554 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 432014 Number of IPv4 prefixes with a valid ROA: 323613 Number of IPv4 prefixes with an invalid ROA: 1093 Number of IPv4 prefixes with no ROA: 556986 Total ASes present in the Internet Routing Table: 72975 Prefixes per ASN: 12.08 Origin-only ASes present in the Internet Routing Table: 62675 Origin ASes announcing only one prefix: 25750 Transit ASes present in the Internet Routing Table: 10300 Transit-only ASes present in the Internet Routing Table: 377 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: 873 Number of instances of unregistered ASNs: 876 Number of 32-bit ASNs allocated by the RIRs: 39391 Number of 32-bit ASNs visible in the Routing Table: 32617 Prefixes from 32-bit ASNs in the Routing Table: 153495 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 519 Number of addresses announced to Internet: 3068816640 Equivalent to 182 /8s, 234 /16s and 109 /24s Percentage of available address space announced: 82.9 Percentage of allocated address space announced: 82.9 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: 296424 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228768 Total APNIC prefixes after maximum aggregation: 66072 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 223971 Unique aggregates announced from the APNIC address blocks: 94792 APNIC Region origin ASes present in the Internet Routing Table: 12558 APNIC Prefixes per ASN: 17.83 APNIC Region origin ASes announcing only one prefix: 3577 APNIC Region transit ASes present in the Internet Routing Table: 1723 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7823 Number of APNIC addresses announced to Internet: 775483392 Equivalent to 46 /8s, 56 /16s and 240 /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: 260476 Total ARIN prefixes after maximum aggregation: 119767 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 260459 Unique aggregates announced from the ARIN address blocks: 125956 ARIN Region origin ASes present in the Internet Routing Table: 18969 ARIN Prefixes per ASN: 13.73 ARIN Region origin ASes announcing only one prefix: 6922 ARIN Region transit ASes present in the Internet Routing Table: 1864 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4477 Number of ARIN addresses announced to Internet: 1295518976 Equivalent to 77 /8s, 56 /16s and 13 /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: 249352 Total RIPE prefixes after maximum aggregation: 116198 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246646 Unique aggregates announced from the RIPE address blocks: 150582 RIPE Region origin ASes present in the Internet Routing Table: 28124 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12022 RIPE Region transit ASes present in the Internet Routing Table: 3988 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: 10703 Number of RIPE addresses announced to Internet: 713798144 Equivalent to 42 /8s, 139 /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 196608-213403 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: 114551 Total LACNIC prefixes after maximum aggregation: 27381 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114383 Unique aggregates announced from the LACNIC address blocks: 48599 LACNIC Region origin ASes present in the Internet Routing Table: 10954 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2669 LACNIC Region transit ASes present in the Internet Routing Table: 2213 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 66 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8657 Number of LACNIC addresses announced to Internet: 176394240 Equivalent to 10 /8s, 131 /16s and 144 /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: 27672 Total AfriNIC prefixes after maximum aggregation: 5465 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 35714 Unique aggregates announced from the AfriNIC address blocks: 11639 AfriNIC Region origin ASes present in the Internet Routing Table: 1628 AfriNIC Prefixes per ASN: 21.94 AfriNIC Region origin ASes announcing only one prefix: 560 AfriNIC Region transit ASes present in the Internet Routing Table: 330 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 957 Number of AfriNIC addresses announced to Internet: 107325696 Equivalent to 6 /8s, 101 /16s and 169 /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 9140 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5923 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3584 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3496 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3430 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2410 499 240 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 438 203 TATACOMM-AS TATA Communications formerl 24560 2044 853 380 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 6389 10348 2771 AMAZON-02, US 11492 4493 298 695 CABLEONE, US 22773 3912 3062 346 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3601 1836 2544 AKAMAI-AS, US 6327 3437 1318 61 SHAW, CA 749 2882 50795 2138 DNIC-AS-00749, US 30036 2628 374 124 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2460 4961 420 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 6801 1730 150 UNI2-AS, ES 8551 4006 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3943 3360 192 AKAMAI-ASN1, NL 39891 3577 210 35 ALJAWWALSTC-AS, SA 6849 2907 355 21 UKRTELNET, UA 12389 2896 2273 907 ROSTELECOM-AS, RU 9009 2481 247 1287 M247, GB 34984 2238 357 631 TELLCOM-AS, TR 58224 1813 931 611 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 10607 3397 562 Uninet S.A. de C.V., MX 10620 3471 518 747 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1803 299 472 Mega Cable, S.A. de C.V., MX 6503 1455 355 528 Axtel, S.A.B. de C.V., MX 28573 1390 2333 253 CLARO S.A., BR 3816 1256 671 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1079 369 21 Telefonica del Peru S.A.A., PE 11664 1022 192 445 Techtel LMDS Comunicaciones Interactiva 11172 957 133 61 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 1623 393 21 LINKdotNET-AS, EG 24835 1414 501 30 RAYA-AS, EG 36992 1313 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 946 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 10607 3397 562 Uninet S.A. de C.V., MX 9808 9140 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6801 1730 150 UNI2-AS, ES 16509 6389 10348 2771 AMAZON-02, US 7545 5923 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4493 298 695 CABLEONE, US 8551 4006 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3943 3360 192 AKAMAI-ASN1, NL 22773 3912 3062 346 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 9140 9099 CHINAMOBILE-CN China Mobile Communications Grou 12479 6801 6651 UNI2-AS, ES 7545 5923 5229 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4006 3967 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 11492 4493 3798 CABLEONE, US 20940 3943 3751 AKAMAI-ASN1, NL 16509 6389 3618 AMAZON-02, US 22773 3912 3566 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3584 3565 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 17033 UNALLOCATED 8.48.225.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.129.40.0/24 Origin: 6461 ZAYO-6461, US 23.129.40.0/24 Transit: 2914 NTT-LTD-2914, US 23.129.56.0/24 Origin: 6461 ZAYO-6461, US 23.129.56.0/24 Transit: 2914 NTT-LTD-2914, US 23.129.136.0/24 Origin: 6461 ZAYO-6461, US 23.129.136.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.8.0/24 Origin: 3257 GTT-BACKBONE GTT, US 23.131.8.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.88.0/24 Origin: 3257 GTT-BACKBONE GTT, US 23.131.88.0/24 Transit: 2914 NTT-LTD-2914, 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 /9:13 /10:40 /11:101 /12:303 /13:589 /14:1204 /15:2097 /16:13515 /17:8244 /18:13772 /19:24844 /20:42510 /21:50764 /22:106902 /23:94358 /24:522414 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5780 6801 UNI2-AS, ES 8151 4323 10607 Uninet S.A. de C.V., MX 8551 3472 4006 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3399 4493 CABLEONE, US 6327 3250 3437 SHAW, CA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2925 3912 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2891 3577 ALJAWWALSTC-AS, SA 6849 2758 2907 UKRTELNET, UA 30036 2284 2628 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 2:1034 3:154 4:6 5:3786 6:104 7:5 8:1529 9:1 11:172 12:1709 13:297 14:2374 15:201 16:44 17:384 18:160 20:212 21:4 22:188 23:5658 24:2276 25:6 27:2600 29:19 31:2420 32:93 34:4 35:76 36:1780 37:4415 38:2827 39:695 40:153 41:3962 42:1091 43:2166 44:291 45:15991 46:4123 47:295 49:1681 50:2150 51:100 52:1425 54:366 55:712 56:8 57:60 58:1700 59:1129 60:958 61:2246 62:2504 63:1942 64:5483 65:2312 66:4834 67:2971 68:1194 69:4141 70:1326 71:672 72:3039 74:2645 75:1391 76:584 77:2164 78:1847 79:3113 80:1990 81:1586 82:1491 83:1198 84:1351 85:2917 86:714 87:1963 88:1107 89:3276 90:521 91:7617 92:2016 93:2584 94:3484 95:3700 96:1305 97:349 98:996 99:737 100:75 101:1271 102:2082 103:28951 104:4374 105:462 106:871 107:2510 108:824 109:4236 110:2008 111:3242 112:2024 113:1478 114:1479 115:1971 116:1882 117:2510 118:2342 119:1858 120:1665 121:1021 122:2546 123:2092 124:1532 125:2059 128:1179 129:1065 130:961 131:2054 132:792 133:372 134:1890 135:289 136:880 137:847 138:2428 139:1506 140:850 141:1404 142:1280 143:1444 144:1202 145:344 146:1795 147:1481 148:2218 149:1719 150:843 151:1083 152:1847 153:459 154:3472 155:1421 156:1753 157:1234 158:1044 159:2176 160:2515 161:1271 162:3464 163:1260 164:1632 165:1612 166:708 167:1725 168:3763 169:835 170:4486 171:827 172:3174 173:3113 174:1024 175:1134 176:3508 177:4639 178:3520 179:2023 180:2318 181:2963 182:3199 183:1951 184:2382 185:19493 186:4318 187:3741 188:3855 189:3265 190:8857 191:1318 192:10995 193:8598 194:6983 195:4954 196:2933 197:2427 198:5946 199:6030 200:7412 201:5712 202:10090 203:9982 204:4548 205:3436 206:3686 207:3333 208:4029 209:4638 210:4083 211:2344 212:4000 213:3416 214:1156 215:67 216:6454 217:2663 218:1246 219:405 220:1670 221:977 222:670 223:2113 End of report