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 11 Apr, 2026 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: 1072405 Prefixes after maximum aggregation (per Origin AS): 400531 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 513391 Number of IPv4 prefixes with a valid ROA: 645961 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 426424 Total ASes present in the Internet Routing Table: 78413 Prefixes per ASN: 13.68 Origin-only ASes present in the Internet Routing Table: 67094 Origin ASes announcing only one prefix: 27031 Transit ASes present in the Internet Routing Table: 11319 Transit-only ASes present in the Internet Routing Table: 581 Paths with bogon ASNs present in the IPv4 Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 986 Number of instances of unregistered ASNs: 1016 Number of 32-bit ASNs allocated by the RIRs: 49288 Number of 32-bit ASNs visible in the Routing Table: 40391 Prefixes from 32-bit ASNs in the Routing Table: 235953 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 324 Number of addresses announced to Internet: 3108946562 Equivalent to 185 /8s, 78 /16s and 194 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 350344 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 295309 Total APNIC prefixes after maximum aggregation: 83605 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 282182 Unique aggregates announced from the APNIC address blocks: 107672 APNIC Region origin ASes present in the Internet Routing Table: 15246 APNIC Prefixes per ASN: 18.51 APNIC Region origin ASes announcing only one prefix: 4671 APNIC Region transit ASes present in the Internet Routing Table: 2064 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10760 Number of APNIC addresses announced to Internet: 754077248 Equivalent to 44 /8s, 242 /16s and 78 /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: 305970 Total ARIN prefixes after maximum aggregation: 135856 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 305203 Unique aggregates announced from the ARIN address blocks: 146837 ARIN Region origin ASes present in the Internet Routing Table: 19425 ARIN Prefixes per ASN: 15.71 ARIN Region origin ASes announcing only one prefix: 7111 ARIN Region transit ASes present in the Internet Routing Table: 1988 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5548 Number of ARIN addresses announced to Internet: 1348226562 Equivalent to 80 /8s, 92 /16s and 78 /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, 393216-404380 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: 290617 Total RIPE prefixes after maximum aggregation: 142364 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 293197 Unique aggregates announced from the RIPE address blocks: 188998 RIPE Region origin ASes present in the Internet Routing Table: 29412 RIPE Prefixes per ASN: 9.97 RIPE Region origin ASes announcing only one prefix: 12168 RIPE Region transit ASes present in the Internet Routing Table: 4070 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13275 Number of RIPE addresses announced to Internet: 733247104 Equivalent to 43 /8s, 180 /16s and 118 /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: 138222 Total LACNIC prefixes after maximum aggregation: 30930 LACNIC Deaggregation factor: 4.47 Prefixes being announced from the LACNIC address blocks: 133212 Unique aggregates announced from the LACNIC address blocks: 50267 LACNIC Region origin ASes present in the Internet Routing Table: 11400 LACNIC Prefixes per ASN: 11.69 LACNIC Region origin ASes announcing only one prefix: 2407 LACNIC Region transit ASes present in the Internet Routing Table: 2610 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9422 Number of LACNIC addresses announced to Internet: 169864640 Equivalent to 10 /8s, 31 /16s and 237 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 41301 Total AfriNIC prefixes after maximum aggregation: 7162 AfriNIC Deaggregation factor: 5.77 Prefixes being announced from the AfriNIC address blocks: 58287 Unique aggregates announced from the AfriNIC address blocks: 19338 AfriNIC Region origin ASes present in the Internet Routing Table: 2021 AfriNIC Prefixes per ASN: 28.84 AfriNIC Region origin ASes announcing only one prefix: 674 AfriNIC Region transit ASes present in the Internet Routing Table: 392 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1386 Number of AfriNIC addresses announced to Internet: 103366656 Equivalent to 6 /8s, 41 /16s and 64 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 14009 9090 157 CHINAMOBILE-CN China Mobile Communication 7545 5913 828 496 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4973 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4906 550 329 BBIL-AP BHARTI Airtel Ltd., IN 18403 4573 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4442 1873 54 VNPT-AS-VN VNPT Corp, VN 7552 4060 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3668 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3621 907 226 CMNET-JIANGSU-AP China Mobile communicati 17561 3063 193 551 LCS-AS-AP LARUS Limited, HK 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 14637 41275 5672 AMAZON-02 - Amazon.com, Inc., US 174 4933 8764 821 COGENT-174 - Cogent Communications, LLC, 22773 4781 3117 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1034 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 76 SHAW - Shaw Communications, CA 396982 3318 4859 491 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2721 222 906 AS-COLOCROSSING - HostPapa, US 30036 2674 365 300 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7158 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3842 3389 112 AKAMAI-ASN1, NL 9009 3831 354 2247 M247, RO 12389 3178 2318 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2719 197 2001 CDNEXT, GB 34984 2450 365 572 TELLCOM-AS, TR 8452 1731 1852 17 TE-AS TE-AS, EG 203020 1637 249 809 HOSTROYALE, IN 13188 1607 100 27 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 12755 3300 620 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2436 506 350 Mega Cable, S.A. de C.V., MX 11830 1938 369 65 Instituto Costarricense de Electricidad y 28573 1585 2431 268 Claro NXT Telecomunicacoes Ltda, BR 11664 1436 277 34 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1245 371 22 INTEGRATEL PERU S.A.A., PE 28202 1089 52 9 MASTER SA, BR 26615 1066 2392 101 TIM SA, BR 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 2025 648 34 RAYA-AS, EG 36992 1859 1532 341 ETISALAT-MISR, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1342 206 352 NTT-DATA-Inc, ZA 24863 1294 389 16 LINKdotNET-AS, EG 36935 1242 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 3741 554 724 321 NTT-DATA-Inc, ZA 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 14637 41275 5672 AMAZON-02 - Amazon.com, Inc., US 9808 14009 9090 157 CHINAMOBILE-CN China Mobile Communication 8151 12755 3300 620 UNINET, MX 12479 7158 1711 149 UNI2-AS, ES 7545 5913 828 496 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4973 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4972 306 72 ALJAWWALSTC-AS, SA 174 4933 8764 821 COGENT-174 - Cogent Communications, LLC, 9498 4906 550 329 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3117 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 14009 13852 CHINAMOBILE-CN China Mobile Communications Grou 8151 12755 12135 UNINET, MX 12479 7158 7009 UNI2-AS, ES 7545 5913 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 4538 4973 4897 ERX-CERNET-BKB China Education and Research Net 9498 4906 4577 BBIL-AP BHARTI Airtel Ltd., IN 18403 4573 4548 FPT-AS-AP FPT Telecom Company, VN 22773 4781 4416 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4442 4388 VNPT-AS-VN VNPT Corp, VN 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 33491 COMCAST-33491 - Comcast 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /9:14 /10:39 /11:95 /12:298 /13:585 /14:1192 /15:2108 /16:13752 /17:8522 /18:14021 /19:26422 /20:47813 /21:53869 /22:115718 /23:113257 /24:673957 /25:72 /26:84 /27:115 /28:40 /29:64 /30:9 /31:3 /32:340 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6945 12755 UNINET, MX 12479 6101 7158 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3530 4670 CABLEONE - CABLE ONE, INC., US 6327 3504 3723 SHAW - Shaw Communications, CA 22773 3054 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2627 14637 AMAZON-02 - Amazon.com, Inc., US 30036 2326 2674 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 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) ---------------------------------------------- 1:2573 2:1832 3:998 4:7 5:5203 6:197 7:6 8:1525 9:39 11:172 12:1187 13:688 14:2758 15:458 16:174 17:427 18:917 20:624 21:4 22:188 23:8191 24:2773 25:2 27:2883 28:1 29:19 31:3544 32:40 34:91 35:287 36:4695 37:4483 38:11257 39:1284 40:421 41:4698 42:2228 43:3168 44:448 45:20776 46:4955 47:429 48:125 49:2273 50:2018 51:626 52:1310 54:279 55:1123 56:11 57:332 58:2588 59:1625 60:1183 61:3394 62:3179 63:1732 64:6329 65:2135 66:6095 67:3266 68:1498 69:4208 70:1054 71:621 72:3173 74:3031 75:1490 76:587 77:2945 78:1976 79:1814 80:2388 81:2248 82:4053 83:1455 84:2144 85:3801 86:1095 87:2505 88:1353 89:4744 90:783 91:8517 92:2823 93:3030 94:4468 95:4682 96:1454 97:315 98:944 99:808 100:68 101:1648 102:5176 103:32866 104:5365 105:2295 106:933 107:2876 108:1235 109:4290 110:2303 111:4186 112:3192 113:2087 114:2295 115:2363 116:2217 117:3541 118:3066 119:2213 120:2760 121:1640 122:3040 123:2459 124:1857 125:3040 126:125 128:1617 129:1018 130:1658 131:2593 132:836 133:489 134:1667 135:612 136:1614 137:1370 138:3573 139:1712 140:1785 141:1738 142:2531 143:2183 144:1747 145:646 146:2214 147:2211 148:2767 149:3163 150:1372 151:2812 152:2322 153:1393 154:10046 155:2305 156:4511 157:2317 158:1532 159:2861 160:3872 161:1965 162:4041 163:2523 164:2085 165:2677 166:1266 167:2320 168:4239 169:886 170:5831 171:1150 172:4554 173:3487 174:881 175:1407 176:3948 177:5806 178:4378 179:2628 180:3137 181:4676 182:4035 183:2855 184:2027 185:21994 186:6238 187:5471 188:4640 189:4651 190:10064 191:2000 192:11556 193:9651 194:7992 195:6024 196:3659 197:3915 198:6170 199:6075 200:8434 201:6577 202:11229 203:10925 204:4779 205:3713 206:4599 207:3863 208:4406 209:5426 210:5244 211:2933 212:5072 213:4157 214:1043 215:47 216:7295 217:3583 218:2005 219:651 220:2339 221:1331 222:1435 223:3466 End of report