IPv4 R&E Routing Table Report 23:05 GMT Sat 25 Feb, 2023 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: 906446 Prefixes after maximum aggregation (per Origin AS): 345456 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445969 Number of IPv4 prefixes with a valid ROA: 375464 Number of IPv4 prefixes with an invalid ROA: 1527 Number of IPv4 prefixes with no ROA: 529455 Total ASes present in the Internet Routing Table: 73978 Prefixes per ASN: 12.25 Origin-only ASes present in the Internet Routing Table: 63510 Origin ASes announcing only one prefix: 26109 Transit ASes present in the Internet Routing Table: 10468 Transit-only ASes present in the Internet Routing Table: 440 Paths with bogon ASNs present in the IPv4 Routing Table: 25 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1040 Number of instances of unregistered ASNs: 1046 Number of 32-bit ASNs allocated by the RIRs: 41293 Number of 32-bit ASNs visible in the Routing Table: 34157 Prefixes from 32-bit ASNs in the Routing Table: 167023 Number of bogon 32-bit ASNs visible in the Routing Table: 18 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 558 Number of addresses announced to Internet: 3062664960 Equivalent to 182 /8s, 140 /16s and 143 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 304928 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234828 Total APNIC prefixes after maximum aggregation: 68203 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229543 Unique aggregates announced from the APNIC address blocks: 97716 APNIC Region origin ASes present in the Internet Routing Table: 13208 APNIC Prefixes per ASN: 17.38 APNIC Region origin ASes announcing only one prefix: 3848 APNIC Region transit ASes present in the Internet Routing Table: 1774 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8543 Number of APNIC addresses announced to Internet: 773119744 Equivalent to 46 /8s, 20 /16s and 223 /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: 266652 Total ARIN prefixes after maximum aggregation: 121386 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268673 Unique aggregates announced from the ARIN address blocks: 130235 ARIN Region origin ASes present in the Internet Routing Table: 19005 ARIN Prefixes per ASN: 14.14 ARIN Region origin ASes announcing only one prefix: 6964 ARIN Region transit ASes present in the Internet Routing Table: 1893 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: 4730 Number of ARIN addresses announced to Internet: 1286317056 Equivalent to 76 /8s, 171 /16s and 164 /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: 257350 Total RIPE prefixes after maximum aggregation: 121122 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253772 Unique aggregates announced from the RIPE address blocks: 156645 RIPE Region origin ASes present in the Internet Routing Table: 28236 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12030 RIPE Region transit ASes present in the Internet Routing Table: 3992 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11036 Number of RIPE addresses announced to Internet: 718383360 Equivalent to 42 /8s, 209 /16s and 169 /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: 117154 Total LACNIC prefixes after maximum aggregation: 28205 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116396 Unique aggregates announced from the LACNIC address blocks: 48805 LACNIC Region origin ASes present in the Internet Routing Table: 10974 LACNIC Prefixes per ASN: 10.61 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2279 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8778 Number of LACNIC addresses announced to Internet: 176480512 Equivalent to 10 /8s, 132 /16s and 225 /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: 29422 Total AfriNIC prefixes after maximum aggregation: 5779 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 37504 Unique aggregates announced from the AfriNIC address blocks: 12130 AfriNIC Region origin ASes present in the Internet Routing Table: 1723 AfriNIC Prefixes per ASN: 21.77 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 334 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1070 Number of AfriNIC addresses announced to Internet: 108026624 Equivalent to 6 /8s, 112 /16s and 91 /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 9456 8883 49 CHINAMOBILE-CN China Mobile Communicati 7545 5806 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3666 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3547 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3375 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2790 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2299 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2161 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8004 10733 2863 AMAZON-02, US 11492 4512 299 641 CABLEONE, US 7155 3955 270 43 VIASAT-SP-BACKBONE, US 22773 3643 3063 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3504 1320 64 SHAW, CA 16625 3294 1649 2419 AKAMAI-AS, US 749 3033 50571 2300 DNIC-AS-00749, US 396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US 7018 2588 24139 1580 ATT-INTERNET4, US 30036 2534 363 422 MEDIACOM-ENTERPRISE-BUSINESS, 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 7083 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4037 3399 167 AKAMAI-ASN1, NL 8551 3900 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2670 253 1388 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1846 949 546 TCI, IR 13188 1607 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 11005 3344 592 Uninet S.A. de C.V., MX 10620 3467 504 872 Telmex Colombia S.A., CO 11830 2264 369 65 Instituto Costarricense de Electricidad 13999 2256 369 602 Mega Cable, S.A. de C.V., MX 28573 1342 2324 256 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1134 370 22 Telefonica del Peru S.A.A., PE 11664 1099 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1025 2498 45 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 1542 533 30 RAYA-AS, EG 24863 1487 393 19 LINKdotNET-AS, EG 36992 1346 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1002 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 498 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 11005 3344 592 Uninet S.A. de C.V., MX 9808 9456 8883 49 CHINAMOBILE-CN China Mobile Communicati 16509 8004 10733 2863 AMAZON-02, US 12479 7083 1706 146 UNI2-AS, ES 7545 5806 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4512 299 641 CABLEONE, US 20940 4037 3399 167 AKAMAI-ASN1, NL 7155 3955 270 43 VIASAT-SP-BACKBONE, US 8551 3900 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9456 9407 CHINAMOBILE-CN China Mobile Communications Grou 12479 7083 6937 UNI2-AS, ES 16509 8004 5141 AMAZON-02, US 7545 5806 5115 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3955 3912 VIASAT-SP-BACKBONE, US 11492 4512 3871 CABLEONE, US 20940 4037 3870 AKAMAI-ASN1, NL 8551 3900 3863 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3666 3645 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /11:103 /12:299 /13:577 /14:1200 /15:2072 /16:13430 /17:8197 /18:13722 /19:24809 /20:42939 /21:50960 /22:109014 /23:96845 /24:542203 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6139 7083 UNI2-AS, ES 8151 5026 11005 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3428 4512 CABLEONE, US 8551 3372 3900 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3312 3504 SHAW, CA 7155 3032 3955 VIASAT-SP-BACKBONE, US 22773 2698 3643 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2191 2534 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3467 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) ---------------------------------------------- 1:1642 2:1231 3:169 4:5 5:4339 6:115 7:6 8:1514 9:1 11:172 12:1583 13:389 14:2345 15:291 16:111 17:366 18:395 20:249 21:4 22:188 23:6067 24:2485 25:4 27:2521 29:19 31:2517 32:107 34:8 35:104 36:1926 37:4605 38:4205 39:863 40:152 41:4061 42:1081 43:2301 44:304 45:16361 46:4163 47:375 49:1733 50:1822 51:386 52:1582 54:397 55:869 56:8 57:89 58:1666 59:1115 60:982 61:2460 62:2626 63:1940 64:5638 65:2319 66:4903 67:3031 68:1352 69:4132 70:1272 71:662 72:2972 74:2588 75:1458 76:599 77:2398 78:1841 79:3172 80:2072 81:1728 82:1466 83:1232 84:1516 85:2991 86:756 87:1966 88:1231 89:3610 90:612 91:7666 92:2025 93:2581 94:3509 95:3955 96:1335 97:347 98:1163 99:744 100:75 101:1297 102:2645 103:30863 104:4585 105:485 106:847 107:2545 108:912 109:4396 110:2088 111:3283 112:2039 113:1490 114:1614 115:2011 116:1886 117:2555 118:2283 119:1938 120:1744 121:1044 122:2592 123:2137 124:1544 125:2349 128:1261 129:1059 130:988 131:1984 132:824 133:413 134:1905 135:295 136:862 137:937 138:2560 139:1544 140:1190 141:1471 142:1416 143:1480 144:1208 145:351 146:1886 147:1554 148:2279 149:1910 150:871 151:1146 152:1956 153:487 154:4175 155:1425 156:1670 157:1300 158:1010 159:2257 160:2554 161:1439 162:3540 163:1489 164:1589 165:1685 166:847 167:1742 168:3796 169:923 170:4551 171:883 172:3508 173:2959 174:1035 175:1158 176:3716 177:4583 178:3623 179:2195 180:2417 181:3407 182:3390 183:1935 184:2354 185:20090 186:4651 187:3947 188:4126 189:3562 190:9098 191:1446 192:10935 193:8816 194:7232 195:5112 196:3067 197:2396 198:5898 199:6095 200:7658 201:5731 202:10255 203:9999 204:4593 205:3507 206:3816 207:3383 208:4070 209:4839 210:4189 211:2385 212:4091 213:3555 214:1088 215:55 216:6590 217:2646 218:1265 219:400 220:1766 221:971 222:671 223:2109 End of report