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.

Sunday, December 1, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Mon 02 Dec, 2013

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

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

BGP routing table entries examined: 470078
Prefixes after maximum aggregation: 188298
Deaggregation factor: 2.50
Unique aggregates announced to Internet: 234460
Total ASes present in the Internet Routing Table: 45472
Prefixes per ASN: 10.34
Origin-only ASes present in the Internet Routing Table: 35463
Origin ASes announcing only one prefix: 16298
Transit ASes present in the Internet Routing Table: 5788
Transit-only ASes present in the Internet Routing Table: 157
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1081
Unregistered ASNs in the Routing Table: 301
Number of 32-bit ASNs allocated by the RIRs: 5434
Number of 32-bit ASNs visible in the Routing Table: 4221
Prefixes from 32-bit ASNs in the Routing Table: 13313
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1241
Number of addresses announced to Internet: 2656613116
Equivalent to 158 /8s, 88 /16s and 178 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163723

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

Prefixes being announced by APNIC Region ASes: 110134
Total APNIC prefixes after maximum aggregation: 33402
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112435
Unique aggregates announced from the APNIC address blocks: 47632
APNIC Region origin ASes present in the Internet Routing Table: 4844
APNIC Prefixes per ASN: 23.21
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 824
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 769
Number of APNIC addresses announced to Internet: 728638716
Equivalent to 43 /8s, 110 /16s and 36 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 162762
Total ARIN prefixes after maximum aggregation: 81295
ARIN Deaggregation factor: 2.00
Prefixes being announced from the ARIN address blocks: 163623
Unique aggregates announced from the ARIN address blocks: 75849
ARIN Region origin ASes present in the Internet Routing Table: 15888
ARIN Prefixes per ASN: 10.30
ARIN Region origin ASes announcing only one prefix: 6009
ARIN Region transit ASes present in the Internet Routing Table: 1617
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 40
Number of ARIN addresses announced to Internet: 1073605376
Equivalent to 63 /8s, 253 /16s and 235 /24s
Percentage of available ARIN address space announced: 56.8

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: 119124
Total RIPE prefixes after maximum aggregation: 61001
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122964
Unique aggregates announced from the RIPE address blocks: 78714
RIPE Region origin ASes present in the Internet Routing Table: 17525
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8304
RIPE Region transit ASes present in the Internet Routing Table: 2773
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2497
Number of RIPE addresses announced to Internet: 656172544
Equivalent to 39 /8s, 28 /16s and 102 /24s
Percentage of available RIPE address space announced: 95.4

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, 61952-62463, 196608-200191
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: 52560
Total LACNIC prefixes after maximum aggregation: 9831
LACNIC Deaggregation factor: 5.35
Prefixes being announced from the LACNIC address blocks: 57800
Unique aggregates announced from the LACNIC address blocks: 27282
LACNIC Region origin ASes present in the Internet Routing Table: 2042
LACNIC Prefixes per ASN: 28.31
LACNIC Region origin ASes announcing only one prefix: 558
LACNIC Region transit ASes present in the Internet Routing Table: 383
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 907
Number of LACNIC addresses announced to Internet: 145602816
Equivalent to 8 /8s, 173 /16s and 185 /24s
Percentage of available LACNIC address space announced: 86.8

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 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: 11396
Total AfriNIC prefixes after maximum aggregation: 2562
AfriNIC Deaggregation factor: 4.45
Prefixes being announced from the AfriNIC address blocks: 12015
Unique aggregates announced from the AfriNIC address blocks: 3986
AfriNIC Region origin ASes present in the Internet Routing Table: 673
AfriNIC Prefixes per ASN: 17.85
AfriNIC Region origin ASes announcing only one prefix: 203
AfriNIC Region transit ASes present in the Internet Routing Table: 131
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48416512
Equivalent to 2 /8s, 226 /16s and 199 /24s
Percentage of available AfriNIC address space announced: 48.1

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
17974 2716 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 641 Korea Telecom (KIX)
7545 2110 319 110 TPG Internet Pty Ltd
4755 1793 392 190 TATA Communications formerly
9829 1536 1244 47 BSNL National Internet Backbo
9583 1251 95 510 Sify Limited
9498 1216 309 73 BHARTI Airtel Ltd.
7552 1163 1080 13 Vietel Corporation
24560 1102 382 166 Bharti Airtel Ltd., Telemedia
4808 1052 1949 303 CNCGROUP IP network: China169

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

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3042 3688 53 BellSouth.net Inc.
22773 2211 2939 137 Cox Communications, Inc.
18566 2052 379 178 MegaPath Corporation
1785 2044 685 132 PaeTec Communications, Inc.
20115 1683 1653 599 Charter Communications
4323 1653 1114 421 Time Warner Telecom
701 1502 11144 778 MCI Communications Services,
7029 1468 1257 164 Windstream Communications Inc
30036 1391 313 583 Mediacom Communications Corp
7018 1331 17779 870 AT&T WorldNet Services

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

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1912 544 16 OJSC "Vimpelcom"
34984 1365 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1195 454 892 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 895 99 48 TOV "Bank-Inform"
6849 856 363 39 JSC UKRTELECOM,
8551 785 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 680 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

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

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3405 1807 90 NET Servicos de Comunicao S.A
10620 2673 433 213 Telmex Colombia S.A.
7303 1729 1151 232 Telecom Argentina Stet-France
18881 1706 908 20 Global Village Telecom
8151 1347 2850 414 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 820 94 92 Telconet S.A
6147 785 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 771 434 61 AVANTEL, S.A.

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

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1828 112 5 Sudanese Mobile Telephone (ZA
24863 870 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 412 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 251 921 209 The Internet Solution
29571 229 21 15 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
29975 192 668 21 Vodacom
12258 183 27 65 Vodacom Internet Company

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

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3405 1807 90 NET Servicos de Comunicao S.A
6389 3042 3688 53 BellSouth.net Inc.
17974 2716 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2673 433 213 Telmex Colombia S.A.
22773 2211 2939 137 Cox Communications, Inc.
4766 2138 11550 641 Korea Telecom (KIX)
7545 2110 319 110 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2044 685 132 PaeTec Communications, Inc.
8402 1912 544 16 OJSC "Vimpelcom"

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

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

ASN No of nets Net Savings Description
6389 3042 2989 BellSouth.net Inc.
17974 2716 2628 PT TELEKOMUNIKASI INDONESIA
10620 2673 2460 Telmex Colombia S.A.
22773 2211 2074 Cox Communications, Inc.
7545 2110 2000 TPG Internet Pty Ltd
1785 2044 1912 PaeTec Communications, Inc.
8402 1912 1896 OJSC "Vimpelcom"
18566 2052 1874 MegaPath Corporation
36998 1828 1823 Sudanese Mobile Telephone (ZA
18881 1706 1686 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

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

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

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

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

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

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /10:31 /11:92 /12:253
/13:476 /14:936 /15:1646 /16:12870 /17:6786 /18:11197
/19:23084 /20:32903 /21:35608 /22:50051 /23:43912 /24:249982
/25:44 /26:33 /27:50 /28:37 /29:29 /30:31
/31:0 /32:0

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

ASN No of nets Total ann. Description
18566 2007 2052 MegaPath Corporation
36998 1793 1828 Sudanese Mobile Telephone (ZA
6389 1700 3042 BellSouth.net Inc.
8402 1595 1912 OJSC "Vimpelcom"
22773 1465 2211 Cox Communications, Inc.
30036 1232 1391 Mediacom Communications Corp
11492 1195 1233 Cable One
1785 1088 2044 PaeTec Communications, Inc.
7029 1045 1468 Windstream Communications Inc
6983 1035 1293 ITC^Deltacom

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

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

1:908 2:862 3:3 4:17 5:1022 6:21
8:607 12:1874 13:3 14:880 15:11 16:3
17:18 18:19 20:25 23:603 24:1759 27:1696
31:1516 32:45 33:2 34:5 36:95 37:1940
38:912 39:5 40:185 41:3081 42:323 44:14
46:2064 47:10 49:694 50:855 52:12 54:44
55:5 56:4 57:26 58:1115 59:577 60:367
61:1464 62:1233 63:1974 64:4396 65:2353 66:4249
67:2103 68:1113 69:3305 70:949 71:514 72:2022
74:2631 75:394 76:303 77:1218 78:1073 79:668
80:1276 81:1054 82:632 83:690 84:585 85:1254
86:382 87:1025 88:550 89:1552 90:157 91:5678
92:612 93:1608 94:2075 95:1504 96:515 97:348
98:1085 99:41 100:31 101:412 103:3739 105:530
106:140 107:217 108:535 109:2001 110:965 111:1122
112:574 113:801 114:754 115:1048 116:1004 117:814
118:1212 119:1283 120:369 121:745 122:1830 123:1265
124:1363 125:1462 128:627 129:222 130:337 131:662
132:347 133:158 134:293 135:72 136:275 137:246
138:351 139:178 140:172 141:335 142:537 143:394
144:497 145:90 146:540 147:424 148:729 149:370
150:154 151:664 152:413 153:207 154:37 155:507
156:303 157:369 158:283 159:694 160:361 161:456
162:919 163:206 164:621 165:574 166:283 167:636
168:1036 169:124 170:1108 171:185 172:12 173:1669
174:721 175:530 176:1324 177:2531 178:1876 179:296
180:1619 181:877 182:1409 183:475 184:634 185:1080
186:2646 187:1466 188:1854 189:1251 190:7275 192:7006
193:5426 194:4021 195:3363 196:1313 197:995 198:4703
199:5473 200:6037 201:2519 202:8901 203:8939 204:4473
205:2633 206:2762 207:2750 208:3961 209:3663 210:2970
211:1573 212:2140 213:2005 214:890 215:86 216:5420
217:1701 218:632 219:318 220:1273 221:584 222:330
223:553

End of report
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