The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Monday, June 3, 2013

[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Tue 04 Jun, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 455763
Prefixes after maximum aggregation: 185526
Deaggregation factor: 2.46
Unique aggregates announced to Internet: 225031
Total ASes present in the Internet Routing Table: 44230
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 34678
Origin ASes announcing only one prefix: 16157
Transit ASes present in the Internet Routing Table: 5870
Transit-only ASes present in the Internet Routing Table: 148
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 54
Max AS path prepend of ASN ( 56484) 51
Prefixes from unregistered ASNs in the Routing Table: 318
Unregistered ASNs in the Routing Table: 132
Number of 32-bit ASNs allocated by the RIRs: 4784
Number of 32-bit ASNs visible in the Routing Table: 3682
Prefixes from 32-bit ASNs in the Routing Table: 10595
Special use prefixes present in the Routing Table: 26
Prefixes being announced from unallocated address space: 200
Number of addresses announced to Internet: 2620801420
Equivalent to 156 /8s, 54 /16s and 65 /24s
Percentage of available address space announced: 70.8
Percentage of allocated address space announced: 70.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.6
Total number of prefixes smaller than registry allocations: 160485

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109328
Total APNIC prefixes after maximum aggregation: 33552
APNIC Deaggregation factor: 3.26
Prefixes being announced from the APNIC address blocks: 110779
Unique aggregates announced from the APNIC address blocks: 45062
APNIC Region origin ASes present in the Internet Routing Table: 4853
APNIC Prefixes per ASN: 22.83
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 821
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 30
Number of APNIC region 32-bit ASNs visible in the Routing Table: 552
Number of APNIC addresses announced to Internet: 722399712
Equivalent to 43 /8s, 14 /16s and 241 /24s
Percentage of available APNIC address space announced: 84.4

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 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: 159831
Total ARIN prefixes after maximum aggregation: 80194
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 160426
Unique aggregates announced from the ARIN address blocks: 73477
ARIN Region origin ASes present in the Internet Routing Table: 15724
ARIN Prefixes per ASN: 10.20
ARIN Region origin ASes announcing only one prefix: 5993
ARIN Region transit ASes present in the Internet Routing Table: 1644
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 19
Number of ARIN addresses announced to Internet: 1064525120
Equivalent to 63 /8s, 115 /16s and 93 /24s
Percentage of available ARIN address space announced: 56.3

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, 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, 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: 117169
Total RIPE prefixes after maximum aggregation: 59968
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 120690
Unique aggregates announced from the RIPE address blocks: 77988
RIPE Region origin ASes present in the Internet Routing Table: 17214
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8174
RIPE Region transit ASes present in the Internet Routing Table: 2825
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 54
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2345
Number of RIPE addresses announced to Internet: 656635492
Equivalent to 39 /8s, 35 /16s and 118 /24s
Percentage of available RIPE address space announced: 95.5

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
59392-61439, 196608-199679
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,
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: 47891
Total LACNIC prefixes after maximum aggregation: 9274
LACNIC Deaggregation factor: 5.16
Prefixes being announced from the LACNIC address blocks: 52204
Unique aggregates announced from the LACNIC address blocks: 24377
LACNIC Region origin ASes present in the Internet Routing Table: 1949
LACNIC Prefixes per ASN: 26.79
LACNIC Region origin ASes announcing only one prefix: 581
LACNIC Region transit ASes present in the Internet Routing Table: 360
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 760
Number of LACNIC addresses announced to Internet: 130389000
Equivalent to 7 /8s, 197 /16s and 148 /24s
Percentage of available LACNIC address space announced: 77.7

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-62463, 262144-263167 plus 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: 10862
Total AfriNIC prefixes after maximum aggregation: 2497
AfriNIC Deaggregation factor: 4.35
Prefixes being announced from the AfriNIC address blocks: 11464
Unique aggregates announced from the AfriNIC address blocks: 3944
AfriNIC Region origin ASes present in the Internet Routing Table: 632
AfriNIC Prefixes per ASN: 18.14
AfriNIC Region origin ASes announcing only one prefix: 188
AfriNIC Region transit ASes present in the Internet Routing Table: 133
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 46574080
Equivalent to 2 /8s, 198 /16s and 170 /24s
Percentage of available AfriNIC address space announced: 46.3

AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
4766 2960 11559 926 Korea Telecom (KIX)
17974 2518 839 86 PT TELEKOMUNIKASI INDONESIA
7545 1979 320 107 TPG Internet Pty Ltd
4755 1735 391 192 TATA Communications formerly
9829 1514 1205 40 BSNL National Internet Backbo
9583 1291 98 536 Sify Limited
7552 1151 1080 13 Vietel Corporation
4808 1137 2121 330 CNCGROUP IP network: China169
9498 1121 309 70 BHARTI Airtel Ltd.
24560 1073 393 162 Bharti Airtel Ltd., Telemedia

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 3017 3692 77 bellsouth.net, inc.
7029 2069 1265 211 Windstream Communications Inc
18566 2065 382 184 Covad Communications
1785 1990 677 123 PaeTec Communications, Inc.
22773 1983 2929 125 Cox Communications, Inc.
20115 1671 1611 615 Charter Communications
4323 1618 1139 403 Time Warner Telecom
701 1533 11075 839 UUNET Technologies, Inc.
30036 1334 298 642 Mediacom Communications Corp
7018 1301 11058 835 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 1705 544 16 Corbina telecom
2118 1260 97 13 EUnet/RELCOM Autonomous Syste
34984 1218 241 222 BILISIM TELEKOM
20940 884 309 692 Akamai Technologies European
13188 829 98 73 Educational Network
31148 812 41 25 FreeNet ISP
8551 771 370 43 Bezeq International
6830 770 2376 443 UPC Distribution Services
34744 684 173 59 SC GVM SISTEM 2003 SRL
58113 666 74 386 LIR DATACENTER TELECOM SRL

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
28573 2789 1537 113 NET Servicos de Comunicao S.A
10620 2648 416 218 TVCABLE BOGOTA
7303 1732 1155 221 Telecom Argentina Stet-France
8151 1271 2710 406 UniNet S.A. de C.V.
18881 959 780 19 Global Village Telecom
6503 926 434 65 AVANTEL, S.A.
27947 838 89 102 Telconet S.A
3816 710 306 85 Empresa Nacional de Telecomun
7738 698 1370 35 Telecomunicacoes da Bahia S.A
11172 608 87 64 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
36998 1237 80 4 MOBITEL
24863 891 274 33 LINKdotNET AS number
6713 542 617 25 Itissalat Al-MAGHRIB
8452 437 956 9 TEDATA
24835 345 80 8 RAYA Telecom - Egypt
3741 261 906 220 The Internet Solution
15706 222 32 6 Sudatel Internet Exchange Aut
29571 205 17 9 Ci Telecom Autonomous system
12258 193 28 67 Vodacom Internet Company
29975 191 667 21 Vodacom

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 3017 3692 77 bellsouth.net, inc.
4766 2960 11559 926 Korea Telecom (KIX)
28573 2789 1537 113 NET Servicos de Comunicao S.A
10620 2648 416 218 TVCABLE BOGOTA
17974 2518 839 86 PT TELEKOMUNIKASI INDONESIA
7029 2069 1265 211 Windstream Communications Inc
18566 2065 382 184 Covad Communications
1785 1990 677 123 PaeTec Communications, Inc.
22773 1983 2929 125 Cox Communications, Inc.
7545 1979 320 107 TPG Internet Pty Ltd

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
28573 2789 2676 NET Servicos de Comunicao S.A
17974 2518 2432 PT TELEKOMUNIKASI INDONESIA
10620 2648 2430 TVCABLE BOGOTA
4766 2960 2034 Korea Telecom (KIX)
18566 2065 1881 Covad Communications
7545 1979 1872 TPG Internet Pty Ltd
1785 1990 1867 PaeTec Communications, Inc.
7029 2069 1858 Windstream Communications Inc
22773 1983 1858 Cox Communications, Inc.
8402 1705 1689 Corbina telecom

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
30031 UNALLOCATED 12.27.122.0/24 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
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
33649 UNALLOCATED 12.111.112.0/24 19029 New Edge Networks
26064 UNALLOCATED 12.149.37.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
128.0.0.0/24 2876 Jump Management SRL
128.0.16.0/21 43568 RIPE Network Coordination Cen
128.0.24.0/21 41794 Altline LLC
128.0.46.0/23 39743 Mobimax Telecom SRL
128.0.53.0/24 60993 Totalsoft SA
128.0.54.0/24 60972 Carpatair SA
128.0.55.0/24 48571 SC efectRO SRL
128.0.57.0/24 60993 Totalsoft SA
128.0.58.0/23 9050 RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24 9050 RTD-ROMTELECOM Autonomous Sys

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.187.208.0/24 174 Cogent Communications
65.111.1.0/24 32258 SDN Global
66.180.239.0/24 35888 VIGNETTE CORPORATION
66.251.128.0/24 33227 Blue Bridge Networks
66.251.133.0/24 33227 Blue Bridge Networks
66.251.134.0/24 33227 Blue Bridge Networks
66.251.136.0/21 33227 Blue Bridge Networks
66.251.140.0/24 33227 Blue Bridge Networks

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 /8:16 /9:11 /10:30 /11:88 /12:248
/13:483 /14:899 /15:1596 /16:12691 /17:6657 /18:11177
/19:22208 /20:32062 /21:34315 /22:47551 /23:42462 /24:239299
/25:1316 /26:1662 /27:843 /28:46 /29:65 /30:18
/31:0 /32:20

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2016 2065 Covad Communications
6389 1732 3017 bellsouth.net, inc.
7029 1580 2069 Windstream Communications Inc
8402 1395 1705 Corbina telecom
22773 1290 1983 Cox Communications, Inc.
36998 1231 1237 MOBITEL
30036 1203 1334 Mediacom Communications Corp
11492 1180 1218 Cable One
1785 1061 1990 PaeTec Communications, Inc.
6983 1010 1137 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:819 2:809 3:3 4:15 5:764 6:10
8:557 12:1927 13:3 14:829 15:11 16:3
17:9 20:17 23:275 24:1770 27:1478 31:1314
32:57 33:2 34:5 36:28 37:1871 38:876
39:2 40:172 41:2782 42:192 44:6 46:1933
47:2 49:638 50:717 52:12 54:33 55:10
57:26 58:1166 59:569 60:313 61:1407 62:1114
63:2036 64:4337 65:2179 66:4380 67:2059 68:1123
69:3314 70:881 71:518 72:1926 74:2567 75:412
76:302 77:1128 78:1019 79:616 80:1262 81:1004
82:623 83:570 84:535 85:1161 86:459 87:990
88:537 89:1761 90:147 91:5501 92:595 93:1673
94:1840 95:1467 96:514 97:344 98:1039 99:41
100:30 101:325 103:2668 105:519 106:149 107:207
108:513 109:1827 110:892 111:1037 112:534 113:802
114:692 115:955 116:926 117:797 118:1085 119:1302
120:406 121:726 122:1796 123:1213 124:1357 125:1356
128:644 129:223 130:326 131:658 132:347 133:148
134:266 135:67 136:222 137:263 138:345 139:196
140:209 141:326 142:542 143:377 144:500 145:93
146:505 147:394 148:682 149:368 150:159 151:566
152:416 153:193 154:41 155:401 156:266 157:398
158:277 159:728 160:338 161:432 162:449 163:221
164:599 165:446 166:289 167:594 168:1023 169:129
170:1052 171:181 172:21 173:1665 174:608 175:480
176:1122 177:2043 178:1856 179:22 180:1453 181:425
182:1210 183:389 184:671 185:498 186:2275 187:1306
188:2144 189:1322 190:6373 192:6655 193:5862 194:4593
195:3423 196:1359 197:912 198:4475 199:5324 200:5945
201:2269 202:8839 203:8881 204:4502 205:2564 206:2796
207:2884 208:4050 209:3644 210:2975 211:1509 212:2198
213:1922 214:916 215:98 216:5260 217:1602 218:617
219:332 220:1259 221:558 222:321 223:453

End of report
_______________________________________________
bgp-stats mailing list
bgp-stats@lists.apnic.net
http://mailman.apnic.net/mailman/listinfo/bgp-stats
Posted by Admin at 11:39 AM

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)