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 16 May, 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: 1077638 Prefixes after maximum aggregation (per Origin AS): 403094 Deaggregation factor: 2.67 Unique aggregates announced (without unneeded subnets): 517262 Number of IPv4 prefixes with a valid ROA: 663405 Number of IPv4 prefixes with an invalid ROA: 22 Number of IPv4 prefixes with no ROA: 414211 Total ASes present in the Internet Routing Table: 78601 Prefixes per ASN: 13.71 Origin-only ASes present in the Internet Routing Table: 67264 Origin ASes announcing only one prefix: 27078 Transit ASes present in the Internet Routing Table: 11337 Transit-only ASes present in the Internet Routing Table: 600 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: 215 Max AS path prepend of ASN (205624) 210 Prefixes from unregistered ASNs in the Routing Table: 1155 Number of instances of unregistered ASNs: 1185 Number of 32-bit ASNs allocated by the RIRs: 49776 Number of 32-bit ASNs visible in the Routing Table: 40675 Prefixes from 32-bit ASNs in the Routing Table: 238498 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: 355 Number of addresses announced to Internet: 3108870786 Equivalent to 185 /8s, 77 /16s and 154 /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: 353173 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 296786 Total APNIC prefixes after maximum aggregation: 84101 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 283151 Unique aggregates announced from the APNIC address blocks: 107988 APNIC Region origin ASes present in the Internet Routing Table: 15281 APNIC Prefixes per ASN: 18.53 APNIC Region origin ASes announcing only one prefix: 4653 APNIC Region transit ASes present in the Internet Routing Table: 2076 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 44 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10815 Number of APNIC addresses announced to Internet: 752845888 Equivalent to 44 /8s, 223 /16s and 132 /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: 305917 Total ARIN prefixes after maximum aggregation: 136727 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 305033 Unique aggregates announced from the ARIN address blocks: 147734 ARIN Region origin ASes present in the Internet Routing Table: 19438 ARIN Prefixes per ASN: 15.69 ARIN Region origin ASes announcing only one prefix: 7118 ARIN Region transit ASes present in the Internet Routing Table: 1987 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: 5588 Number of ARIN addresses announced to Internet: 1347686146 Equivalent to 80 /8s, 84 /16s and 15 /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: 293396 Total RIPE prefixes after maximum aggregation: 143578 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 296634 Unique aggregates announced from the RIPE address blocks: 191565 RIPE Region origin ASes present in the Internet Routing Table: 29511 RIPE Prefixes per ASN: 10.05 RIPE Region origin ASes announcing only one prefix: 12196 RIPE Region transit ASes present in the Internet Routing Table: 4095 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 215 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13429 Number of RIPE addresses announced to Internet: 734227584 Equivalent to 43 /8s, 195 /16s and 108 /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: 139000 Total LACNIC prefixes after maximum aggregation: 30879 LACNIC Deaggregation factor: 4.50 Prefixes being announced from the LACNIC address blocks: 133258 Unique aggregates announced from the LACNIC address blocks: 50319 LACNIC Region origin ASes present in the Internet Routing Table: 11406 LACNIC Prefixes per ASN: 11.68 LACNIC Region origin ASes announcing only one prefix: 2440 LACNIC Region transit ASes present in the Internet Routing Table: 2605 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: 9448 Number of LACNIC addresses announced to Internet: 169702592 Equivalent to 10 /8s, 29 /16s and 116 /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: 41384 Total AfriNIC prefixes after maximum aggregation: 7144 AfriNIC Deaggregation factor: 5.79 Prefixes being announced from the AfriNIC address blocks: 59207 Unique aggregates announced from the AfriNIC address blocks: 19355 AfriNIC Region origin ASes present in the Internet Routing Table: 2031 AfriNIC Prefixes per ASN: 29.15 AfriNIC Region origin ASes announcing only one prefix: 671 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1395 Number of AfriNIC addresses announced to Internet: 104239104 Equivalent to 6 /8s, 54 /16s and 144 /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 14076 9121 156 CHINAMOBILE-CN China Mobile Communication 7545 5881 826 479 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4945 4192 73 ERX-CERNET-BKB China Education and Resear 9498 4935 551 328 BBIL-AP BHARTI Airtel Ltd., IN 18403 4548 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4460 1873 54 VNPT-AS-VN VNPT Corp, VN 7552 4066 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3693 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3688 907 228 CMNET-JIANGSU-AP China Mobile communicati 17561 3448 217 602 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 14954 41322 5686 AMAZON-02 - Amazon.com, Inc., US 22773 4787 3099 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4592 305 1088 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 174 3718 8760 851 COGENT-174 - Cogent Communications, LLC, 6327 3718 1305 75 SHAW - Shaw Communications, CA 396982 3341 4865 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2912 222 913 AS-COLOCROSSING - HostPapa, US 7029 2627 2540 893 WINDSTREAM - Windstream Communications LL 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 7127 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3911 359 2318 M247, RO 20940 3822 3389 110 AKAMAI-ASN1, NL 12389 3171 2321 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2794 205 2065 CDNEXT, GB 34984 2491 367 584 TELLCOM-AS, TR 8452 1689 1852 14 TE-AS TE-AS, EG 203020 1653 252 830 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 12746 3254 632 UNINET, MX 10620 3434 450 1103 Telmex Colombia S.A., CO 13999 2363 498 346 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 28573 1581 2431 268 Claro NXT Telecomunicacoes Ltda, BR 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 371 22 INTEGRATEL PERU S.A.A., PE 28202 1094 52 9 MASTER SA, BR 22884 1074 70 362 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 36992 1860 1532 340 ETISALAT-MISR, EG 24835 1807 649 36 RAYA-AS, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1289 191 315 NTT-DATA-Inc, ZA 24863 1270 389 16 LINKdotNET-AS, EG 36935 1262 523 45 Vodafone-, EG 36903 1231 555 97 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1077 70 18 ORANGE-COTE-IVOIRE, CI 328608 615 56 160 Africa-on-Cloud-AS, 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 14954 41322 5686 AMAZON-02 - Amazon.com, Inc., US 9808 14076 9121 156 CHINAMOBILE-CN China Mobile Communication 8151 12746 3254 632 UNINET, MX 12479 7127 1711 149 UNI2-AS, ES 7545 5881 826 479 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 4538 4945 4192 73 ERX-CERNET-BKB China Education and Resear 9498 4935 551 328 BBIL-AP BHARTI Airtel Ltd., IN 22773 4787 3099 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4592 305 1088 CABLEONE - CABLE ONE, INC., US 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 14076 13920 CHINAMOBILE-CN China Mobile Communications Grou 8151 12746 12114 UNINET, MX 12479 7127 6978 UNI2-AS, ES 7545 5881 5402 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 4538 4945 4872 ERX-CERNET-BKB China Education and Research Net 9498 4935 4607 BBIL-AP BHARTI Airtel Ltd., IN 18403 4548 4523 FPT-AS-AP FPT Telecom Company, VN 22773 4787 4424 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4460 4406 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 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 400273 UNALLOCATED 8.41.137.0/24 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 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 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 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 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 /13:584 /14:1191 /15:2111 /16:13737 /17:8513 /18:14032 /19:26408 /20:47758 /21:53830 /22:115303 /23:113801 /24:679183 /25:74 /26:83 /27:112 /28:41 /29:62 /30:9 /31:3 /32:341 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6965 12746 UNINET, MX 12479 6064 7127 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 6327 3498 3718 SHAW - Shaw Communications, CA 11492 3468 4592 CABLEONE - CABLE ONE, INC., US 22773 3064 4787 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2699 14954 AMAZON-02 - Amazon.com, Inc., US 30036 2260 2606 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2238 3434 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) ---------------------------------------------- 1:2582 2:2044 3:999 4:7 5:5228 6:201 7:6 8:1504 9:59 11:172 12:1147 13:707 14:2775 15:466 16:209 17:446 18:916 20:631 21:4 22:188 23:8364 24:2772 25:2 27:2879 28:1 29:19 31:3617 32:40 34:91 35:287 36:4808 37:4477 38:10835 39:1301 40:442 41:4726 42:2224 43:3294 44:457 45:20815 46:4969 47:434 48:129 49:2281 50:2008 51:730 52:1330 54:288 55:1104 56:11 57:329 58:2588 59:1618 60:1184 61:3408 62:3177 63:1695 64:6406 65:2156 66:6146 67:3273 68:1512 69:4221 70:1055 71:616 72:3187 74:3068 75:1501 76:598 77:2959 78:2046 79:1813 80:2387 81:2265 82:4175 83:1463 84:2162 85:3843 86:1101 87:2675 88:1344 89:4814 90:798 91:8528 92:2788 93:3052 94:4520 95:4771 96:1445 97:309 98:949 99:833 100:70 101:1651 102:5283 103:32913 104:5397 105:2327 106:922 107:2948 108:1273 109:4359 110:2304 111:4201 112:3218 113:2121 114:2414 115:2359 116:2153 117:3529 118:3112 119:2166 120:2783 121:1639 122:3053 123:2456 124:1851 125:3053 126:158 128:1590 129:1027 130:1689 131:2599 132:891 133:486 134:1723 135:617 136:1483 137:1380 138:3658 139:1701 140:1794 141:1763 142:2575 143:2107 144:1796 145:638 146:2196 147:2256 148:2797 149:3208 150:1353 151:2912 152:2342 153:1682 154:9949 155:2310 156:5193 157:2366 158:1578 159:2871 160:3920 161:1976 162:4086 163:2622 164:2468 165:2708 166:1286 167:2341 168:4278 169:894 170:5853 171:1162 172:4782 173:3471 174:883 175:1401 176:4007 177:5784 178:4432 179:2639 180:3175 181:4725 182:4065 183:2860 184:2024 185:22053 186:6599 187:5444 188:4562 189:4675 190:10132 191:2116 192:11596 193:9679 194:8021 195:6019 196:3647 197:3885 198:6172 199:6056 200:8484 201:6560 202:11172 203:10935 204:4777 205:3717 206:4480 207:3874 208:4391 209:5459 210:5240 211:2941 212:5131 213:4155 214:1040 215:47 216:7323 217:3627 218:2015 219:652 220:2327 221:1344 222:1445 223:3502 End of report