Routing Table Report 04:00 +10GMT Thu 22 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 386637
Prefixes after maximum aggregation: 168051
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189332
Total ASes present in the Internet Routing Table: 39655
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 32545
Origin ASes announcing only one prefix: 15519
Transit ASes present in the Internet Routing Table: 5340
Transit-only ASes present in the Internet Routing Table: 139
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: 1945
Unregistered ASNs in the Routing Table: 1015
Number of 32-bit ASNs allocated by the RIRs: 2110
Number of 32-bit ASNs visible in the Routing Table: 1770
Prefixes from 32-bit ASNs in the Routing Table: 4220
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 97
Number of addresses announced to Internet: 2503068432
Equivalent to 149 /8s, 49 /16s and 203 /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: 163781
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95554
Total APNIC prefixes after maximum aggregation: 31313
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91917
Unique aggregates announced from the APNIC address blocks: 38589
APNIC Region origin ASes present in the Internet Routing Table: 4618
APNIC Prefixes per ASN: 19.90
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 730
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: 124
Number of APNIC addresses announced to Internet: 632005472
Equivalent to 37 /8s, 171 /16s and 163 /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: 146616
Total ARIN prefixes after maximum aggregation: 74889
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118757
Unique aggregates announced from the ARIN address blocks: 48785
ARIN Region origin ASes present in the Internet Routing Table: 14810
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: 1568
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: 804508608
Equivalent to 47 /8s, 243 /16s and 211 /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: 94727
Total RIPE prefixes after maximum aggregation: 51718
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 86838
Unique aggregates announced from the RIPE address blocks: 55184
RIPE Region origin ASes present in the Internet Routing Table: 16214
RIPE Prefixes per ASN: 5.36
RIPE Region origin ASes announcing only one prefix: 7991
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: 1230
Number of RIPE addresses announced to Internet: 494652872
Equivalent to 29 /8s, 123 /16s and 205 /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: 36819
Total LACNIC prefixes after maximum aggregation: 7995
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36322
Unique aggregates announced from the LACNIC address blocks: 18906
LACNIC Region origin ASes present in the Internet Routing Table: 1560
LACNIC Prefixes per ASN: 23.28
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 286
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: 398
Number of LACNIC addresses announced to Internet: 94996104
Equivalent to 5 /8s, 169 /16s and 134 /24s
Percentage of available LACNIC address space announced: 62.9
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: 8542
Total AfriNIC prefixes after maximum aggregation: 2066
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6589
Unique aggregates announced from the AfriNIC address blocks: 2087
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: 161
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: 30865408
Equivalent to 1 /8s, 214 /16s and 248 /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 1713 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 85 TPG Internet Pty Ltd
4755 1517 385 157 TATA Communications formerly
7552 1420 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1100 81 496 Sify Limited
4808 1078 2036 307 CNCGROUP IP network: China169
24560 1009 385 167 Bharti Airtel Ltd., Telemedia
18101 970 130 157 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 3473 3814 219 bellsouth.net, inc.
7029 2856 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1858 680 122 PaeTec Communications, Inc.
4323 1620 1065 385 Time Warner Telecom
20115 1608 1550 621 Charter Communications
22773 1515 2909 107 Cox Communications, Inc.
30036 1466 260 684 Mediacom Communications Corp
19262 1389 4683 401 Verizon Global Networks
7018 1304 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 1627 480 15 Corbina telecom
15557 1092 2161 64 LDCOM NETWORKS
6830 648 1928 413 UPC Distribution Services
2118 638 99 14 EUnet/RELCOM Autonomous Syste
34984 626 132 197 BILISIM TELEKOM
12479 549 636 53 Uni2 Autonomous System
20940 545 176 436 Akamai Technologies European
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 1571 1062 76 NET Servicos de Comunicao S.A
8151 1453 2981 352 UniNet S.A. de C.V.
7303 1248 752 176 Telecom Argentina Stet-France
27947 631 73 94 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 547 237 89 Empresa Nacional de Telecomun
11172 530 102 97 Servicios Alestra S.A de C.V
14117 504 48 43 Telefonica del Sur S.A.
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 786 146 36 LINKdotNET AS number
3741 280 939 229 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 3473 3814 219 bellsouth.net, inc.
7029 2856 1016 199 Windstream Communications Inc
4766 2486 11102 968 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1858 680 122 PaeTec Communications, Inc.
10620 1718 318 156 TVCABLE BOGOTA
17974 1713 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 85 TPG Internet Pty Ltd
8402 1627 480 15 Corbina telecom
4323 1620 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 2856 2657 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1858 1736 PaeTec Communications, Inc.
17974 1713 1675 PT TELEKOMUNIKASI INDONESIA
8402 1627 1612 Corbina telecom
10620 1718 1562 TVCABLE BOGOTA
7545 1628 1543 TPG Internet Pty Ltd
4766 2486 1518 Korea Telecom (KIX)
28573 1571 1495 NET Servicos de Comunicao S.A
7552 1420 1413 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
37.17.240.0/21 35362 Best ISP
37.17.248.0/21 8473 Bahnhof Autonomous System
37.18.128.0/21 57477 >>UNKNOWN<<
37.18.160.0/20 16347 FITECH-NANCY
37.19.8.0/21 49964 VERIXI
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 /14:814 /15:1447 /16:12069 /17:6123 /18:10183
/19:20118 /20:27963 /21:28199 /22:38213 /23:35857 /24:201209
/25:1178 /26:1400 /27:770 /28:166 /29:55 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2485 2856 Windstream Communications Inc
6389 2118 3473 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1613 1718 TVCABLE BOGOTA
8402 1606 1627 Corbina telecom
30036 1426 1466 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1061 1858 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)
----------------------------------------------
1:466 2:439 4:15 5:1 6:3 8:360
12:1941 13:1 14:569 15:11 16:3 17:7
20:9 23:76 24:1714 27:1125 31:734 32:67
33:2 34:2 36:4 37:6 38:773 40:114
41:3015 42:78 43:1 44:3 46:1140 47:3
49:279 50:471 52:13 55:5 56:2 57:44
58:922 59:485 60:321 61:1159 62:917 63:1964
64:4124 65:2303 66:4375 67:2006 68:1170 69:3127
70:919 71:409 72:1784 74:2644 75:430 76:320
77:943 78:872 79:453 80:1182 81:845 82:526
83:530 84:574 85:1165 86:743 87:897 88:340
89:1585 90:249 91:4368 92:540 93:1528 94:1344
95:1040 96:396 97:287 98:782 99:38 100:1
101:130 103:574 106:11 107:115 108:100 109:1420
110:677 111:827 112:424 113:497 114:592 115:705
116:880 117:717 118:887 119:1234 120:354 121:676
122:1569 123:1022 124:1328 125:1327 128:550 129:189
130:185 131:582 132:161 133:21 134:225 135:54
136:213 137:151 138:286 139:126 140:489 141:256
142:382 143:387 144:499 145:67 146:476 147:220
148:623 149:268 150:164 151:192 152:445 153:170
154:7 155:385 156:210 157:364 158:154 159:503
160:347 161:221 162:363 163:186 164:522 165:392
166:543 167:455 168:807 169:146 170:829 171:95
172:4 173:1789 174:595 175:412 176:320 177:422
178:1135 180:1208 181:39 182:672 183:261 184:409
185:1 186:1413 187:783 188:962 189:1139 190:5302
192:5976 193:5418 194:3781 195:3181 196:1285 197:174
198:3610 199:4234 200:5508 201:1717 202:8468 203:8528
204:4342 205:2420 206:2664 207:2840 208:4013 209:3566
210:2730 211:1473 212:1951 213:1793 214:805 215:93
216:4918 217:1503 218:567 219:336 220:1254 221:527
222:323 223:266
End of report
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