Routing Table Report 04:00 +10GMT Tue 20 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 387113
Prefixes after maximum aggregation: 167952
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189160
Total ASes present in the Internet Routing Table: 39619
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 32514
Origin ASes announcing only one prefix: 15503
Transit ASes present in the Internet Routing Table: 5343
Transit-only ASes present in the Internet Routing Table: 144
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: 1924
Unregistered ASNs in the Routing Table: 1001
Number of 32-bit ASNs allocated by the RIRs: 2106
Number of 32-bit ASNs visible in the Routing Table: 1762
Prefixes from 32-bit ASNs in the Routing Table: 4194
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 91
Number of addresses announced to Internet: 2502834704
Equivalent to 149 /8s, 46 /16s and 58 /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: 163660
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95747
Total APNIC prefixes after maximum aggregation: 31297
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 92111
Unique aggregates announced from the APNIC address blocks: 38516
APNIC Region origin ASes present in the Internet Routing Table: 4613
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 729
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 122
Number of APNIC addresses announced to Internet: 632014944
Equivalent to 37 /8s, 171 /16s and 200 /24s
Percentage of available APNIC address space announced: 80.2
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: 146546
Total ARIN prefixes after maximum aggregation: 74836
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118638
Unique aggregates announced from the ARIN address blocks: 48755
ARIN Region origin ASes present in the Internet Routing Table: 14803
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5663
ARIN Region transit ASes present in the Internet Routing Table: 1569
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: 804530624
Equivalent to 47 /8s, 244 /16s and 41 /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: 95105
Total RIPE prefixes after maximum aggregation: 51675
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 87225
Unique aggregates announced from the RIPE address blocks: 55108
RIPE Region origin ASes present in the Internet Routing Table: 16194
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2574
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: 1226
Number of RIPE addresses announced to Internet: 494588872
Equivalent to 29 /8s, 122 /16s and 211 /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: 36841
Total LACNIC prefixes after maximum aggregation: 8005
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 36337
Unique aggregates announced from the LACNIC address blocks: 18905
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 23.34
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 285
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: 94850440
Equivalent to 5 /8s, 167 /16s and 77 /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: 8519
Total AfriNIC prefixes after maximum aggregation: 2069
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6562
Unique aggregates announced from the AfriNIC address blocks: 2079
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 13.02
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 111
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: 30855680
Equivalent to 1 /8s, 214 /16s and 210 /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 2481 11100 963 Korea Telecom (KIX)
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 85 TPG Internet Pty Ltd
4755 1518 385 158 TATA Communications formerly
7552 1449 1067 11 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
4808 1077 2034 304 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 3477 3814 220 bellsouth.net, inc.
7029 2919 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1856 680 122 PaeTec Communications, Inc.
4323 1617 1065 384 Time Warner Telecom
20115 1606 1550 625 Charter Communications
22773 1513 2909 105 Cox Communications, Inc.
30036 1452 259 678 Mediacom Communications Corp
19262 1389 4683 401 Verizon Global Networks
7018 1313 7013 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 1644 480 15 Corbina telecom
2118 1097 99 14 EUnet/RELCOM Autonomous Syste
15557 1092 2161 64 LDCOM NETWORKS
6830 646 1928 413 UPC Distribution Services
34984 626 132 195 BILISIM TELEKOM
20940 549 177 438 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 1575 1064 75 NET Servicos de Comunicao S.A
8151 1456 2989 346 UniNet S.A. de C.V.
7303 1246 752 176 Telecom Argentina Stet-France
27947 631 73 94 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
6503 556 434 68 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 546 237 89 Empresa Nacional de Telecomun
11172 529 102 96 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 1038 958 13 TEDATA
24863 790 146 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 239 13 9 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 3477 3814 220 bellsouth.net, inc.
7029 2919 1017 200 Windstream Communications Inc
4766 2481 11100 963 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1856 680 122 PaeTec Communications, Inc.
10620 1718 318 156 TVCABLE BOGOTA
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1644 480 15 Corbina telecom
7545 1628 303 85 TPG Internet Pty Ltd
4323 1617 1065 384 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 2919 2719 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1856 1734 PaeTec Communications, Inc.
17974 1716 1678 PT TELEKOMUNIKASI INDONESIA
8402 1644 1629 Corbina telecom
10620 1718 1562 TVCABLE BOGOTA
7545 1628 1543 TPG Internet Pty Ltd
4766 2481 1518 Korea Telecom (KIX)
28573 1575 1500 NET Servicos de Comunicao S.A
7552 1449 1438 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
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
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 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 /14:814 /15:1445 /16:12065 /17:6124 /18:10177
/19:20117 /20:27950 /21:28204 /22:38214 /23:35861 /24:201695
/25:1178 /26:1402 /27:770 /28:168 /29:56 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2547 2919 Windstream Communications Inc
6389 2122 3477 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1622 1644 Corbina telecom
10620 1613 1718 TVCABLE BOGOTA
30036 1412 1452 Mediacom Communications Corp
11492 1114 1151 Cable One
1785 1059 1856 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)
----------------------------------------------
1:454 2:439 4:15 5:1 6:3 8:361
12:1943 13:1 14:561 15:11 16:3 17:7
20:9 23:75 24:1715 27:1125 31:735 32:67
33:2 34:2 36:4 38:775 39:1 40:114
41:2996 42:79 43:1 44:3 46:1138 47:3
49:278 50:470 52:13 55:5 56:2 57:44
58:957 59:485 60:342 61:1184 62:935 63:1964
64:4110 65:2302 66:4372 67:2005 68:1170 69:3129
70:919 71:378 72:1780 74:2642 75:432 76:321
77:940 78:873 79:448 80:1172 81:849 82:531
83:530 84:575 85:1164 86:743 87:903 88:342
89:1582 90:248 91:4350 92:541 93:1524 94:1325
95:1051 96:398 97:286 98:770 99:38 100:1
101:130 103:566 106:11 107:113 108:100 109:1409
110:673 111:822 112:380 113:496 114:599 115:702
116:883 117:717 118:894 119:1238 120:355 121:672
122:1560 123:1028 124:1344 125:1343 128:554 129:188
130:184 131:585 132:162 133:21 134:225 135:54
136:213 137:151 138:286 139:123 140:493 141:255
142:382 143:384 144:501 145:67 146:472 147:222
148:633 149:268 150:164 151:192 152:445 153:169
154:7 155:382 156:210 157:365 158:155 159:501
160:342 161:221 162:363 163:185 164:521 165:392
166:543 167:457 168:819 169:146 170:829 171:95
172:4 173:1793 174:592 175:424 176:320 177:445
178:1135 180:1140 181:39 182:672 183:260 184:402
185:1 186:1417 187:782 188:955 189:1177 190:5288
192:5977 193:5198 194:4279 195:3375 196:1285 197:173
198:3629 199:4229 200:5515 201:1702 202:8494 203:8513
204:4344 205:2411 206:2666 207:2842 208:4021 209:3564
210:2757 211:1476 212:1965 213:1791 214:803 215:92
216:4917 217:1495 218:582 219:352 220:1257 221:528
222:324 223:266
End of report
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