This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 31 May, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1007249 Prefixes after maximum aggregation (per Origin AS): 381247 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 483231 Number of IPv4 prefixes with a valid ROA: 558473 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 448757 Total ASes present in the Internet Routing Table: 76988 Prefixes per ASN: 13.08 Origin-only ASes present in the Internet Routing Table: 65911 Origin ASes announcing only one prefix: 26901 Transit ASes present in the Internet Routing Table: 11077 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 50 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 108 Max AS path prepend of ASN (150261) 100 Prefixes from unregistered ASNs in the Routing Table: 1003 Number of instances of unregistered ASNs: 1007 Number of 32-bit ASNs allocated by the RIRs: 46546 Number of 32-bit ASNs visible in the Routing Table: 38337 Prefixes from 32-bit ASNs in the Routing Table: 207096 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 309 Number of addresses announced to Internet: 3115642944 Equivalent to 185 /8s, 180 /16s and 240 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 327218 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270862 Total APNIC prefixes after maximum aggregation: 78178 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 261842 Unique aggregates announced from the APNIC address blocks: 104668 APNIC Region origin ASes present in the Internet Routing Table: 14705 APNIC Prefixes per ASN: 17.81 APNIC Region origin ASes announcing only one prefix: 4459 APNIC Region transit ASes present in the Internet Routing Table: 1985 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 108 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10162 Number of APNIC addresses announced to Internet: 754283072 Equivalent to 44 /8s, 245 /16s and 114 /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: 294543 Total ARIN prefixes after maximum aggregation: 131293 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 295049 Unique aggregates announced from the ARIN address blocks: 139662 ARIN Region origin ASes present in the Internet Routing Table: 19246 ARIN Prefixes per ASN: 15.33 ARIN Region origin ASes announcing only one prefix: 7045 ARIN Region transit ASes present in the Internet Routing Table: 1983 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5224 Number of ARIN addresses announced to Internet: 1352623872 Equivalent to 80 /8s, 159 /16s and 103 /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: 278395 Total RIPE prefixes after maximum aggregation: 134627 RIPE Deaggregation factor: 2.07 Prefixes being announced from the RIPE address blocks: 276723 Unique aggregates announced from the RIPE address blocks: 175194 RIPE Region origin ASes present in the Internet Routing Table: 28947 RIPE Prefixes per ASN: 9.56 RIPE Region origin ASes announcing only one prefix: 12060 RIPE Region transit ASes present in the Internet Routing Table: 4014 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12464 Number of RIPE addresses announced to Internet: 731643584 Equivalent to 43 /8s, 155 /16s and 254 /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: 125846 Total LACNIC prefixes after maximum aggregation: 29820 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 122156 Unique aggregates announced from the LACNIC address blocks: 48987 LACNIC Region origin ASes present in the Internet Routing Table: 11264 LACNIC Prefixes per ASN: 10.84 LACNIC Region origin ASes announcing only one prefix: 2666 LACNIC Region transit ASes present in the Internet Routing Table: 2511 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 57 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9213 Number of LACNIC addresses announced to Internet: 171853888 Equivalent to 10 /8s, 62 /16s and 72 /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: 36600 Total AfriNIC prefixes after maximum aggregation: 6702 AfriNIC Deaggregation factor: 5.46 Prefixes being announced from the AfriNIC address blocks: 51170 Unique aggregates announced from the AfriNIC address blocks: 14438 AfriNIC Region origin ASes present in the Internet Routing Table: 1905 AfriNIC Prefixes per ASN: 26.86 AfriNIC Region origin ASes announcing only one prefix: 671 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 105081088 Equivalent to 6 /8s, 67 /16s and 105 /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 11214 8916 154 CHINAMOBILE-CN China Mobile Communication 7545 6166 843 640 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4853 4192 75 ERX-CERNET-BKB China Education and Resear 18403 4375 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4366 1874 56 VNPT-AS-VN VNPT Corp, VN 9498 4294 533 301 BBIL-AP BHARTI Airtel Ltd., IN 7552 3951 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3696 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2209 1440 91 TENCENT-NET-AP Shenzhen Tencent Computer Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13608 40829 5190 AMAZON-02, US 174 5251 8747 896 COGENT-174, US 11492 4735 314 586 CABLEONE, US 7155 3878 287 89 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 22773 3348 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3175 3853 420 GOOGLE-CLOUD-PLATFORM, US 16625 3040 1268 2235 AKAMAI-AS, US 36352 2816 230 852 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7719 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3991 3395 139 AKAMAI-ASN1, NL 9009 3901 356 2074 M247, RO 12389 3082 2306 888 ROSTELECOM-AS PJSC Rostelecom. Technical 5384 2415 585 29 EMIRATES-INTERNET Emirates Internet, AE 34984 2391 360 580 TELLCOM-AS, TR 212238 2225 161 1638 CDNEXT, GB 8452 1611 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12164 3251 576 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1361 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 22884 1064 68 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1037 2503 52 TIM SA, BR 6503 1032 373 163 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1780 644 27 RAYA-AS, EG 24863 1652 389 17 LINKdotNET-AS, EG 29571 1611 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1054 523 47 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 553 82 3 KENET-AS, KE 15399 539 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13608 40829 5190 AMAZON-02, US 8151 12164 3251 576 UNINET, MX 9808 11214 8916 154 CHINAMOBILE-CN China Mobile Communication 12479 7719 1714 148 UNI2-AS, ES 7545 6166 843 640 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5251 8747 896 COGENT-174, US 4538 4853 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4735 314 586 CABLEONE, US 18403 4375 347 25 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12164 11588 UNINET, MX 9808 11214 11060 CHINAMOBILE-CN China Mobile Communications Grou 12479 7719 7571 UNI2-AS, ES 7545 6166 5526 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4853 4778 ERX-CERNET-BKB China Education and Research Net 39891 4798 4735 ALJAWWALSTC-AS, SA 174 5251 4355 COGENT-174, US 18403 4375 4350 FPT-AS-AP FPT Telecom Company, VN 45899 4366 4310 VNPT-AS-VN VNPT Corp, VN 11492 4735 4149 CABLEONE, US Complete listing at https://bgp.nsrc.org/REN/Guam/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/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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/Guam/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 /11:92 /12:300 /13:584 /14:1226 /15:2185 /16:14016 /17:8508 /18:14491 /19:25430 /20:45920 /21:53115 /22:113940 /23:105722 /24:620917 /25:127 /26:113 /27:100 /28:17 /29:75 /30:10 /31:0 /32:288 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6634 7719 UNI2-AS, ES 8151 6361 12164 UNINET, MX 11492 3532 4735 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3426 3631 SHAW, CA 7155 2836 3878 VIASAT-SP-BACKBONE, US 22773 2496 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2374 13608 AMAZON-02, US 30036 2237 2578 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2436 2:1630 3:803 4:11 5:4773 6:162 7:6 8:1608 9:1 11:172 12:1359 13:447 14:2591 15:360 16:285 17:380 18:921 20:557 21:4 22:188 23:7564 24:2808 25:2 27:2835 29:19 31:3360 32:40 33:1 34:84 35:217 36:3039 37:4665 38:10316 39:919 40:171 41:4334 42:1956 43:2710 44:382 45:18810 46:5166 47:338 49:1959 50:1886 51:591 52:1570 54:321 55:1097 56:11 57:267 58:2326 59:1361 60:1195 61:3159 62:2963 63:1811 64:5476 65:2186 66:4682 67:3067 68:1126 69:3944 70:1081 71:638 72:2843 74:2802 75:1517 76:617 77:2698 78:1891 79:1709 80:2244 81:2077 82:3113 83:1486 84:1875 85:3432 86:1169 87:2397 88:1293 89:4412 90:778 91:8400 92:2779 93:2918 94:4166 95:4356 96:1461 97:316 98:978 99:689 100:72 101:1445 102:4026 103:32690 104:5057 105:1191 106:1040 107:2650 108:1254 109:4123 110:2286 111:3355 112:2133 113:1861 114:1990 115:2245 116:2102 117:2581 118:2914 119:2024 120:2035 121:1452 122:2907 123:2517 124:1723 125:2915 126:93 128:1675 129:977 130:1334 131:2016 132:782 133:449 134:1548 135:334 136:1355 137:1265 138:2930 139:1671 140:1615 141:1510 142:1916 143:1799 144:1134 145:509 146:2207 147:2113 148:2700 149:2969 150:1260 151:1952 152:2092 153:569 154:8319 155:1995 156:3339 157:1913 158:1327 159:2481 160:3856 161:1861 162:3791 163:2198 164:1740 165:2229 166:1494 167:1924 168:4376 169:797 170:5155 171:1012 172:4430 173:3313 174:915 175:1332 176:3719 177:4839 178:3664 179:2353 180:2709 181:4106 182:3475 183:2149 184:2099 185:21676 186:5240 187:4563 188:4254 189:4347 190:9594 191:1507 192:11315 193:9498 194:7952 195:5678 196:3281 197:3660 198:6120 199:8539 200:8259 201:6392 202:10841 203:10917 204:4549 205:3617 206:4507 207:3516 208:4264 209:5158 210:4938 211:2756 212:4621 213:3758 214:1027 215:48 216:6776 217:3300 218:1418 219:584 220:2097 221:1108 222:976 223:2431 End of report