Routing Table Report 04:00 +10GMT Wed 21 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 386997
Prefixes after maximum aggregation: 168009
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189255
Total ASes present in the Internet Routing Table: 39627
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 32532
Origin ASes announcing only one prefix: 15518
Transit ASes present in the Internet Routing Table: 5330
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1935
Unregistered ASNs in the Routing Table: 1008
Number of 32-bit ASNs allocated by the RIRs: 2106
Number of 32-bit ASNs visible in the Routing Table: 1765
Prefixes from 32-bit ASNs in the Routing Table: 4208
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2502521872
Equivalent to 149 /8s, 41 /16s and 116 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 163826
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95472
Total APNIC prefixes after maximum aggregation: 31310
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91838
Unique aggregates announced from the APNIC address blocks: 38547
APNIC Region origin ASes present in the Internet Routing Table: 4611
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 729
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 123
Number of APNIC addresses announced to Internet: 631708256
Equivalent to 37 /8s, 167 /16s and 26 /24s
Percentage of available APNIC address space announced: 80.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 146620
Total ARIN prefixes after maximum aggregation: 74859
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118739
Unique aggregates announced from the ARIN address blocks: 48771
ARIN Region origin ASes present in the Internet Routing Table: 14807
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1565
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804520640
Equivalent to 47 /8s, 244 /16s and 2 /24s
Percentage of available ARIN address space announced: 63.9
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 95159
Total RIPE prefixes after maximum aggregation: 51697
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 87278
Unique aggregates announced from the RIPE address blocks: 55151
RIPE Region origin ASes present in the Internet Routing Table: 16199
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2567
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1228
Number of RIPE addresses announced to Internet: 494595784
Equivalent to 29 /8s, 122 /16s and 238 /24s
Percentage of available RIPE address space announced: 79.7
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36840
Total LACNIC prefixes after maximum aggregation: 8010
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 36327
Unique aggregates announced from the LACNIC address blocks: 18910
LACNIC Region origin ASes present in the Internet Routing Table: 1558
LACNIC Prefixes per ASN: 23.32
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 396
Number of LACNIC addresses announced to Internet: 94854024
Equivalent to 5 /8s, 167 /16s and 91 /24s
Percentage of available LACNIC address space announced: 62.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8539
Total AfriNIC prefixes after maximum aggregation: 2064
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6587
Unique aggregates announced from the AfriNIC address blocks: 2080
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.10
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30849792
Equivalent to 1 /8s, 214 /16s and 187 /24s
Percentage of available AfriNIC address space announced: 46.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2486 11102 968 Korea Telecom (KIX)
17974 1646 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 85 TPG Internet Pty Ltd
4755 1519 386 159 TATA Communications formerly
7552 1440 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
4808 1078 2036 307 CNCGROUP IP network: China169
24560 996 385 167 Bharti Airtel Ltd., Telemedia
18101 968 129 156 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3475 3813 219 bellsouth.net, inc.
7029 2918 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1857 680 122 PaeTec Communications, Inc.
4323 1618 1065 385 Time Warner Telecom
20115 1606 1550 625 Charter Communications
22773 1512 2909 105 Cox Communications, Inc.
30036 1464 260 683 Mediacom Communications Corp
19262 1389 4683 401 Verizon Global Networks
7018 1305 7012 856 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1642 480 15 Corbina telecom
2118 1097 99 14 EUnet/RELCOM Autonomous Syste
15557 1092 2161 64 LDCOM NETWORKS
6830 648 1928 413 UPC Distribution Services
34984 626 132 197 BILISIM TELEKOM
20940 550 177 439 Akamai Technologies European
12479 541 630 48 Uni2 Autonomous System
3320 532 8162 398 Deutsche Telekom AG
3292 480 2106 407 TDC Tele Danmark
8866 464 134 27 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1718 318 156 TVCABLE BOGOTA
28573 1574 1064 75 NET Servicos de Comunicao S.A
8151 1455 2981 348 UniNet S.A. de C.V.
7303 1248 752 176 Telecom Argentina Stet-France
27947 627 73 92 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 546 237 89 Empresa Nacional de Telecomun
6503 540 434 68 AVANTEL, S.A.
11172 530 102 97 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1036 958 13 TEDATA
24863 791 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 160 664 82 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3475 3813 219 bellsouth.net, inc.
7029 2918 1017 200 Windstream Communications Inc
4766 2486 11102 968 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1857 680 122 PaeTec Communications, Inc.
10620 1718 318 156 TVCABLE BOGOTA
17974 1646 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1642 480 15 Corbina telecom
7545 1628 303 85 TPG Internet Pty Ltd
4323 1618 1065 385 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2918 2718 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1857 1735 PaeTec Communications, Inc.
8402 1642 1627 Corbina telecom
17974 1646 1608 PT TELEKOMUNIKASI INDONESIA
10620 1718 1562 TVCABLE BOGOTA
7545 1628 1543 TPG Internet Pty Ltd
4766 2486 1518 Korea Telecom (KIX)
28573 1574 1499 NET Servicos de Comunicao S.A
7552 1440 1433 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
37.17.0.0/17 42772 RIPE Network Coordination Cen
37.17.208.0/20 28878 Signet Internet
37.17.232.0/21 13030 INIT7 Autonomous System
37.17.240.0/21 35362 Best ISP
37.17.248.0/21 8473 Bahnhof Autonomous System
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:81 /12:237
/13:465 /14:813 /15:1448 /16:12068 /17:6120 /18:10180
/19:20113 /20:27946 /21:28206 /22:38186 /23:35819 /24:201653
/25:1179 /26:1400 /27:770 /28:168 /29:56 /30:13
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2546 2918 Windstream Communications Inc
6389 2120 3475 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1621 1642 Corbina telecom
10620 1613 1718 TVCABLE BOGOTA
30036 1424 1464 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1060 1857 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
15557 1042 1092 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:473 2:442 4:15 5:1 6:3 8:360
12:1941 13:1 14:566 15:11 16:3 17:7
20:9 23:76 24:1715 27:1124 31:736 32:67
33:2 34:2 36:4 37:1 38:774 40:114
41:3014 42:79 43:1 44:3 46:1140 47:3
49:279 50:472 52:13 55:5 56:2 57:44
58:922 59:485 60:342 61:1172 62:928 63:1963
64:4116 65:2304 66:4375 67:2006 68:1170 69:3129
70:919 71:408 72:1786 74:2644 75:432 76:321
77:940 78:868 79:453 80:1181 81:847 82:534
83:530 84:573 85:1164 86:744 87:903 88:342
89:1586 90:249 91:4361 92:540 93:1526 94:1326
95:1047 96:397 97:287 98:780 99:38 100:1
101:130 103:569 106:11 107:114 108:100 109:1418
110:674 111:820 112:380 113:496 114:592 115:703
116:878 117:717 118:890 119:1234 120:354 121:676
122:1564 123:1022 124:1329 125:1344 128:548 129:189
130:184 131:586 132:161 133:21 134:225 135:54
136:213 137:151 138:286 139:123 140:493 141:256
142:382 143:385 144:501 145:67 146:472 147:222
148:634 149:268 150:164 151:192 152:445 153:169
154:7 155:383 156:210 157:364 158:155 159:502
160:342 161:221 162:362 163:186 164:522 165:393
166:543 167:457 168:815 169:146 170:829 171:95
172:4 173:1799 174:595 175:414 176:321 177:422
178:1135 180:1142 181:39 182:672 183:262 184:399
185:1 186:1413 187:774 188:956 189:1171 190:5293
192:5975 193:5193 194:4274 195:3361 196:1286 197:174
198:3613 199:4229 200:5518 201:1717 202:8477 203:8519
204:4344 205:2414 206:2664 207:2844 208:4021 209:3566
210:2743 211:1474 212:1967 213:1795 214:805 215:93
216:4918 217:1504 218:567 219:336 220:1255 221:527
222:323 223:266
End of report
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