Routing Table Report 00:00 GMT Fri 20 Apr, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 411953
Prefixes after maximum aggregation: 174015
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 190782
Total ASes present in the Internet Routing Table: 40828
Prefixes per ASN: 10.09
Origin-only ASes present in the Internet Routing Table: 33082
Origin ASes announcing only one prefix: 15660
Transit ASes present in the Internet Routing Table: 5500
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 30
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 6140
Unregistered ASNs in the Routing Table: 172
Number of 32-bit ASNs allocated by the RIRs: 2603
Number of 32-bit ASNs visible in the Routing Table: 2246
Prefixes from 32-bit ASNs in the Routing Table: 5621
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2359492700
Equivalent to 140 /8s, 163 /16s and 0 /24s
Percentage of available address space announced: 63.7
Percentage of allocated address space announced: 63.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 175099
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97659
Total APNIC prefixes after maximum aggregation: 31199
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 94224
Unique aggregates announced from the APNIC address blocks: 38078
APNIC Region origin ASes present in the Internet Routing Table: 4672
APNIC Prefixes per ASN: 20.17
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 747
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 186
Number of APNIC addresses announced to Internet: 626214664
Equivalent to 37 /8s, 83 /16s and 71 /24s
Percentage of available APNIC address space announced: 79.4
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: 152739
Total ARIN prefixes after maximum aggregation: 78466
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123740
Unique aggregates announced from the ARIN address blocks: 47265
ARIN Region origin ASes present in the Internet Routing Table: 15088
ARIN Prefixes per ASN: 8.20
ARIN Region origin ASes announcing only one prefix: 5751
ARIN Region transit ASes present in the Internet Routing Table: 1588
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 668576256
Equivalent to 39 /8s, 217 /16s and 170 /24s
Percentage of available ARIN address space announced: 53.1
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: 104736
Total RIPE prefixes after maximum aggregation: 53885
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 95815
Unique aggregates announced from the RIPE address blocks: 56066
RIPE Region origin ASes present in the Internet Routing Table: 16521
RIPE Prefixes per ASN: 5.80
RIPE Region origin ASes announcing only one prefix: 8045
RIPE Region transit ASes present in the Internet Routing Table: 2644
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1511
Number of RIPE addresses announced to Internet: 487310732
Equivalent to 29 /8s, 11 /16s and 197 /24s
Percentage of available RIPE address space announced: 78.5
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: 41317
Total LACNIC prefixes after maximum aggregation: 8244
LACNIC Deaggregation factor: 5.01
Prefixes being announced from the LACNIC address blocks: 41102
Unique aggregates announced from the LACNIC address blocks: 20196
LACNIC Region origin ASes present in the Internet Routing Table: 1588
LACNIC Prefixes per ASN: 25.88
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 300
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 527
Number of LACNIC addresses announced to Internet: 99332104
Equivalent to 5 /8s, 235 /16s and 176 /24s
Percentage of available LACNIC address space announced: 65.8
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: 9586
Total AfriNIC prefixes after maximum aggregation: 2152
AfriNIC Deaggregation factor: 4.45
Prefixes being announced from the AfriNIC address blocks: 7633
Unique aggregates announced from the AfriNIC address blocks: 2188
AfriNIC Region origin ASes present in the Internet Routing Table: 538
AfriNIC Prefixes per ASN: 14.19
AfriNIC Region origin ASes announcing only one prefix: 168
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31799808
Equivalent to 1 /8s, 229 /16s and 58 /24s
Percentage of available AfriNIC address space announced: 47.4
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 1929 11105 693 Korea Telecom (KIX)
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1670 301 88 TPG Internet Pty Ltd
4755 1587 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1249 95 542 Sify Limited
9829 1249 1069 30 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
24560 1024 385 167 Bharti Airtel Ltd.
4808 969 1913 286 CNCGROUP IP network: China169
18101 947 131 160 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3426 3807 195 bellsouth.net, inc.
7029 3369 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1898 680 130 AppliedTheory Corporation
20115 1641 1565 620 Charter Communications
22773 1576 2910 111 Cox Communications, Inc.
4323 1537 991 350 Time Warner Telecom
30036 1420 259 750 Mediacom Communications Corp
7018 1261 9774 821 AT&T WorldNet Services
11492 1186 216 364 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1712 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
15557 1157 2247 54 LDCOM NETWORKS
286 1054 852 198 KPNQwest Backbone AS
31148 679 37 9 FreeNet ISP
34984 679 188 175 Tellcom Iletisim Hizmetleri
6830 658 2215 427 UPC Distribution Services
12479 646 666 63 Uni2 Autonomous System
20940 639 207 502 Akamai Technologies European
8551 597 360 81 Bezeq International
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1809 327 176 TVCABLE BOGOTA
28573 1782 1107 59 Types of queries are: POCs, o
6503 1542 418 66 AVANTEL, S.A.
8151 1531 3019 332 Uninet S.A. de C.V.
7303 1361 829 190 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 686 74 98 Telconet S.A
11172 637 91 73 Alestra
22047 582 326 15 Types of queries are: POCs, o
3816 572 242 100 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1316 958 13 TEDATA
24863 851 274 35 LINKdotNET AS number
16284 537 4 13 GST-N Autonomous System
6713 491 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 YEBO-AS
33776 197 12 21 Starcomms Nigeria Limited
24835 180 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 161 666 86 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3426 3807 195 bellsouth.net, inc.
7029 3369 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1929 11105 693 Korea Telecom (KIX)
1785 1898 680 130 AppliedTheory Corporation
10620 1809 327 176 TVCABLE BOGOTA
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1782 1107 59 Types of queries are: POCs, o
8402 1712 544 16 Corbina telecom
7545 1670 301 88 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3369 3212 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1898 1768 AppliedTheory Corporation
17974 1802 1739 PT TELEKOMUNIKASI INDONESIA
28573 1782 1723 Types of queries are: POCs, o
8402 1712 1696 Corbina telecom
10620 1809 1633 TVCABLE BOGOTA
7545 1670 1582 TPG Internet Pty Ltd
6503 1542 1476 AVANTEL, S.A.
22773 1576 1465 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.10.2.0/24 3257 Tiscali Intl Network
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
37.247.48.0/21 34971 Prometeus di Daniela Agro
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:28 /11:81 /12:235
/13:459 /14:835 /15:1524 /16:12372 /17:6536 /18:10925
/19:21203 /20:30096 /21:30353 /22:40999 /23:38386 /24:215828
/25:90 /26:100 /27:112 /28:292 /29:255 /30:722
/31:20 /32:470
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3027 3369 Windstream Communications Inc
6389 2144 3426 bellsouth.net, inc.
18566 2040 2091 Covad Communications
10620 1695 1809 TVCABLE BOGOTA
8402 1689 1712 Corbina telecom
30036 1366 1420 Mediacom Communications Corp
6503 1300 1542 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1118 1316 TEDATA
15557 1104 1157 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:540 2:681 4:18 6:3 8:403 12:2013
13:1 14:610 15:12 16:3 17:7 20:22
23:166 24:1779 27:1261 31:1009 32:119 33:2
34:2 36:8 37:367 38:802 39:4 40:120
41:3212 42:136 44:3 46:1501 47:3 49:390
50:538 52:13 54:7 55:12 56:3 57:39
58:965 59:518 60:280 61:1277 62:1034 63:2009
64:4195 65:2255 66:4521 67:2042 68:1351 69:3304
70:953 71:487 72:1849 73:1 74:2651 75:507
76:330 77:945 78:1013 79:501 80:1257 81:917
82:681 83:552 84:612 85:1213 86:766 87:936
88:359 89:1643 90:292 91:4761 92:529 93:1543
94:1480 95:1171 96:363 97:319 98:913 99:37
100:7 101:177 103:1008 106:102 107:188 108:234
109:1646 110:767 111:924 112:456 113:594 114:647
115:880 116:913 117:717 118:924 119:1232 120:356
121:822 122:1672 123:1084 124:1360 125:1266 128:548
129:197 130:258 131:593 132:179 133:22 134:246
135:62 136:212 137:177 138:355 139:159 140:492
141:247 142:387 143:414 144:527 145:131 146:493
147:305 148:801 149:303 150:160 151:176 152:464
153:172 154:9 155:447 156:216 157:382 158:177
159:523 160:337 161:260 162:350 163:188 164:571
165:410 166:573 167:463 168:823 169:128 170:861
171:127 172:2 173:1767 174:590 175:444 176:490
177:674 178:1337 180:1208 181:73 182:810 183:287
184:451 185:1 186:2212 187:1045 188:1183 189:1789
190:5554 192:6033 193:5563 194:4672 195:3669 196:1300
197:132 198:3671 199:4528 200:5820 201:1935 202:8528
203:8632 204:4331 205:2503 206:2773 207:2807 208:4080
209:3646 210:2779 211:1490 212:2066 213:1922 214:837
215:104 216:5139 217:1544 218:547 219:359 220:1236
221:557 222:329 223:337
End of report
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